There's some nice use of colour in this wall. I also quite like the "chopped up" edges you've given to the two patterns you've used on either side (didn't know how else to phrase it :)). That's quite a nice idea, and one I think could be made stronger.

However, overall I have a feeling that you're just using slightly too many effects and tricks in the wall. It just has that feeling that it's a little too much, you know? I think if I was to make one change it would be to the "wind blur" stripes across the wall. I feel you should take it more in a vector-like direction and beef up those patterns like I mentioned instead.

The only other crit I would make would be on the hand holding the book--it seems slightly deformed somehow, like the fingers are too bendy. Perhaps adding more detail in would help?

Hope that's of some use.