There's a lot of great things going on here. Composition, lighting, color, depth, all are pretty intriguing here. I love the differentiation of texture you've got going on. However, the thing I'm noticing most (and generally I tend to notice when someone does something better than me that I'm trying to improve) is your color work. It's really interesting and subtle in a way I struggle with. Do you think you could stop by my gallery and throw some pointers my way?