Been a very long time since I did any spacecraft designs. General principles still apply though, remembering this is a self-contained, self-reliant unit, so essentially you need everything you'd have on a normal ship with a sizeable crew - they need to eat, sleep, stay clean (clothes and person; toilets as well), exercise, medical facilities, a means of controlling each system on the vessel, a means of communicating with other vessels and shore/planetary/orbital bases, a means of carrying out the vessel's primary and subsidiary functions, emergency escape facilities, emergency handling facilities (e.g. fire, flood, general damage control), a means of observing whatever is around them outside the vessel, and as you obviously already have, propulsive engines and fuel sources. This list is not exhaustive! And almost all this has to fit within the outer hull somehow.

Spherical and rounded hull shapes are a nightmare to design for. About 40 years ago, I drew out by hand a spherical free-moving spacecraft intended as a planetary defence vessel, one of a fleet, and that was horrendous, as (well, if you're me anyway) I had to keep checking how the outer circumference affected the internal space for different parts of every vertical level, and having to keep changing things because they'd no longer fit at the size intended, and so forth.

Unless there are strong reasons not to do so that make sense in-game, there's no physical necessity from our reality to have streamlined forms for spacecraft at all. Doesn't look so "Hollywood movie pretty", I grant you, but...

One alternative you might try would be not using the RGB Matrix effect, but setting up a simple rectangular polygon that covers all the map on its own, new, sheet, setting the polygon to have a solid red colour, and then adding a Transparency effect to that sheet. If you move the sheet to be below the text, but above the rest of the map sheets, that might work. You'll probably need to keep adjusting the Transparency, and probably also the colour of the polygon (likely somewhere in the reds and oranges range) to get to something you're happy with. Not guaranteed to work ideally, but it should give you more control over the final colour of your text, at least.

Looking a lot better now!

Yes, I think the walls would work very nicely for ruins too.

If the stepped outer surface was full regulated, it would also work for buildings such as ancient Mesopotamian temples, which had deliberately constructed outside walls that had this kind of "vertical recesses" patterning all round them. I've had to draw these before, both by hand and on computer, and it can be pretty tedious for a larger building plan!

Lot of detail there, certainly!

If this was going into the Atlas, I'd suggest a rethink on some of the labelling, as to my eye much of it's getting lost amongst the terrain in places (using the larger Gallery version to check this). Indeed, there are labels visible on that version that I didn't spot on the Forum one. Since it's for personal use, that's probably less of an issue though!

For the crystal city concept, it may depend exactly how you envisage it. For a large-area map such as the Dungeon Worlds Annual will let you create, you could perhaps repurpose some of the standard CC3+ overland map symbols, like glaciers or icebergs (though you may have to get creative about hiding what are intended as water lines for the latter!), and making use of the varicolor options to recolour other features - and also with CD3 house symbols, for instance, if you wanted to map the city itself, or parts of it, in more detail.

It's definitely worthwhile to take some time to look through all the symbol catalogues you have available, and make a note of any symbols that might work in such map creation, even if that's a long way from what the symbol was originally meant to be! As you can resize any symbol in CC3+, imagine too how it might look if a given symbol were larger or smaller, or a different colour (which you can set and see while you're browsing through each symbol catalogue that includes varicolor symbols).

Just as well Wyverns can fly 😎🐲

Sometimes getting things to stand out more means just changing the colour or line thickness a little (or font size for text). An outer glow of some kind can help, but it can also make things look too misty, which I think it what's happening with some of the smaller text labels presently. I'm not sure that brown colouring on the labels is working well enough, and even the grey labels could be a little clearer.

The general textures seem fine, although the desert edge is maybe a bit too abrupt (very obvious where the green coloration alongside the river ends currently). That seems to be accentuated by the line of desert-edge dunes north of the river too. The more wavy edge of the dunes south of the river looks more natural to my eye at least.

As you might tell from my frequent use of random options in my Community Atlas maps, I've been a long-time fan of such random design systems, for all they can need a bit of nudging sometimes to get things to work out OK. I've not used the 5E system as yet, though almost exactly 20 years ago (July-August 2001), I created a classic 12-level dungeon using the random system in the original (1979) AD&D DMs Guide, each level filling an A4 page of graph paper. All done by-hand then, however. I did make a start converting it to CC3 not long after I got the program, around 2014 or 2015, I think, but that was very slow going, as I hadn't the option then to scan the hand-drawn maps to trace in CC3.

Have to say that your map looks a lot more elegant and less cluttered than any of my old ones from that dungeon set, so the 5E system may be something I should experiment with in future, perhaps...

Can't really do more than reiterate what Sue's said already re you and your mother's ongoing situation, and to hope things settle for you very soon.

With CC3+, I think we all feel for you too. Even a short spell away, and I find I've forgotten something critical... If time and circumstances allow, it might be worth checking-in on one or two of the live PF mapping sessions on YouTube - or checking them later as VOD - as Ralf usually goes through all the basics of setting up a new map, as well as whatever the session's about, for instance, which might help get you back in the swing of things a bit quicker.

I got the program in 2013, but did very little with it for a few years afterwards. I've only been especially active with it in more recent times, notably since about 2018, primarily in contributing items for the Community Atlas.

Using the program more frequently and regularly has certainly improved my grasp of what its capabilities are, something that's true for most people, I think. Finding the time, and sometimes the inspiration, to do that can be more of a challenge though!