It does look better darkened, but the gradual darkening doesn't line up too well where the wall and ceiling meet, especially on the top left corner. I feel like the highlights on the framed pictures need to be toned down, when not being exposed to that much light. The text is kind of hard to read, and maybe the status bars could use more contrast. The ceiling tiles look like more depth could be added to them.

It's very good otherwise. I like the monsters.