Nah, for me it's mainly the carpet placement in his towers.
The only maps that really bother me in Chaos Project are the towers.
While I despise large empty areas in RPGXP, even Blizzard's towers don't seem
too empty. There is a lot of unused space, but it definitely bearable. Like I said, it's mainly the carpet. The way it interacts with the corners as they cut angles just is unappealing to me.
I have yet to really see a map in Chaos Project that I thought was created half-assed or poorly.
Especially that one you just posted Blizz. The lava dungeon is orgasmic!! I love that demon!!
@Blizz:
This is what I mean ...
notice the blue square.
There is no defining pixels to show that the wall is ending. Looking at the default indoor tilesets; you can notice that they have tiles with solid borders for the edges of the indoor doorways like that.