@Pegucha - I'll edit the carpet, I too now think it's not that good. And also throw out the folds (they are unnatural). Yes, those black things are bookshelves. Since I'm taking a different aproach to presenting walls closest to the camera, I thought those tiles would add a bit more depth (the character of course is covered by them when he walks by). I don't know whether I will use them though, and even if, then certainly less of them.
@ptoing - haha, I haven't noticed that =D I think I'll just add some shadows on the part where the bar meets the column. I would add more shades on the floor, but I have a limited space for tiles, and even those simple shadows take up too much space =(
@Faceless - the problem is all those tiles are about 6 pixels wide, the same as the distance beetwen the columns and walls. I kind of wanted them to exactly fit that space, but I'll try moving them up or down a few pixels and see how it looks.
Thanks for all the comments, I'll post the updated version later.