Personally, I like the first one more. In this case, the AI actually captured pretty well what I wanted to convey, although I had to do several touch-ups in Photoshop to fix the most obvious issues — and there were quite a few... I think I’ll use it as a reference and try to tweak it further in an image editor to polish the remaining flaws. If I can’t get it to look the way I want, I’ll just go with the second one.
Thanks a lot for commenting and sharing your opinion! I’ll be publishing the final version of the game in about a week, so you’ll be able to see which cover I ended up using.
Cheers!