Having lived only in places with tile or slate roofs, I can confirm Shessar's photos are indeed entirely accurate for both those materials. Slide, wind effects and thin ice/snow melt basically works from the top down, and outer roof edges facing more nearly into the current wind, so those will all tend to clear of snow first. This can be enhanced around objects sticking out of the roof like chimneys and stove pipes, especially where those are in use. There may also be some smoke discoloration of the snow near chimneys that are in heavy, regular use as well (albeit that also tends to mean snow there will melt faster as well - introducing foreign particulates to the ice/snow helps it melt faster generally, like applying salt to road and path ice).

Roof patches do tend to be harder edged than you've illustrated so far, and with a tendency to remain in the hollows a little longer than the ridges on shaped tiles, as you've already noted. There are a lot of variables however, and commonly, once the snow's started to melt on such roofs, it will tend to clear fairly quickly thereafter, unless there's fresh snowfall heavy enough to fill-in the cleared gaps.

Snowy roofs looking good now; perhaps not so "realistic" in the strict sense, but we already discussed that above, and they do look the part to me.

Not so sure about the pentagonal igloos (and yes I know they're actually the detached add-on dormers window roofs!) 😉

[Although they would actually work quite nicely as sheds/small huts partly buried in snow drifts too, more seriously.]

Been there, done that (albeit quite some time ago now; for the Nibirum = Community Atlas system, for anyone unfamiliar)!

Should be a good one regardless of that, as it's an interestingly different style of mapping to work with, compared to what most of us here normally map.

There are things to be said for both options (plus of course, you can't assume everyone will wish to map somewhere where the snow falls in late autumn/early winter, thickens and only starts to thaw around the start of spring - i.e. the randomness of what happens in British winters!), and both are obviously buildings. However, the one with less snow cover has a bit more character to it, which would definitely support the idea you mentioned in your most recent post Sue.

I've not done much with Cartographer, so I hadn't realised there'd be such an issue with adding a glow to the symbols. There is a small glow built-in to the star symbols, but I agree a larger glow is really needed to show clearly what the object is when you're viewing the map at a distance.

The Red Sun system does look a little better.

If you still want to swap the two systems, I think you will be better moving the systems manually.

You could use rotate, providing you know the exact centre of the main orbit on which both systems lie, but this will also invert everything in the process.

Mirror copy would keep all the orbits and objects in their same relative positions once swapped to the opposite side of the orbit (don't do this on the labels though), but you would need to drawn the mirror line very precisely at an angle to accomplish this, AND mirror copy will force everything onto one Sheet if it wasn't to begin with. Plus you couldn't swap the two systems in one command, so one would overlap the other after the move (unless one set is on a different Layer, which you could hide before-hand).

Maybe mirroring or rotating the background star image would work instead? It would certainly be a simpler operation!