some suggestions, the slither thin ceiling depth looks a bit off, so I'd suggest having anything but the entrance (which I'm sure would be in a map dependent fixed place) only buildable 1tile away from the surface, also I liked your green tiles, so an idea on keeping them in would be for surface (implying grass) and there also is my suggestion for what might be bothering you about the entrance, the shadows from the top, and then just me messing around with other junk you can probably dismiss, like torches, having them throughout would make sense, or if your minions see in the dark, idk guess they don't need to be in there, or maybe the adventurer lights them kinda like a % progression of how deep into your dungeon he is *shrugs* and nice minion animations dig the overall style

and minions turning into urn/pots? nice touch


Edit: looked at it again, entrance stood out even more after doing that last edit, so did this to see if it's something you'd bother with, also the way you depict them those minions look like they could be prone to mischief, so why not have a whip weilding brute unit that keeps them in line

just more visual suggestions, coz I'm really digging your idea


and oh yeah your evil keeper overlord didn't look quite as evil or ominous as he could so i messed with him sorry
