Conversely, I think the trees work rather well with the watery swamp texture currently, though those don't work quite so nicely with the other textures involved. This can be a problem when trying to mix styles, of course.

If you need electronic image versions to trace into a CC3+ map, North Carolina Maps may help, if you haven't bookmarked their site already, that is!

I think the snag is that volcanoes tend to be, and make, their own mountains, so they'd typically affect how the mountains nearby look as well - that is, they'd blend into one another completely. Right now, they look a bit too much dropped-in-from-space.

That can work in some cases, where the volcanic mountain is quite isolated especially - the classic example might be Olympus Mons on Mars, which has a vast cliff almost all around its outer base.

However here, the symbols look rather out of place currently in both versions.

There is a mass of fractal entities on that sheet Cal, which is making things run VERY slowly overall, and it may be this which is causing you so much grief.

This is just from a very quick check through, however, and I'm sure Sue's assessment will be far more useful!

Dragging this topic back into the light, as I recently discovered this book was reprinted in all its glory in 2024 (the original is dated 2018). It's an astonishing, and beautifully-illustrated, collection of essays by various authors. It's been on the shelves in my local bookshop since at least December apparently, though I only saw it in detail for the first time today.