Well, the colours in the screenshoots you posted did look a bit drab.
Anyways, I didn't call it bad, and I do like the cave map in the first post.
Now that I look at it again, it's not as bland as I thought it had been. I just meant that the maps seemed a bit, idk, dreary. I guess you're going for sort of a dark, 'oh no, demons!' effect, but I think the colours could have a bit more contrast and saturation.