An isometric dungeon I've been working on for a while for practice and learning.
Very good, but as stated before you should fix the color count.
I'm sure the 394 colors is because of a file saving mistake or a blurry tool. Can you check it out? I can imagine this being done with 16 colors.
I like your take on this!
However your piece has 394 colours, which seems like a lot for a gallery piece - I can see this easily have half as many colours, or even a quarter, without a significant loss in fidelity.