I really like the design but whenever I see designs like this I always wonder.. Is their a break in the background on the X-axis? I see that you have got the Y-axis good. I can never figure out how people make designs like this and make a background that wont break..
I think for this reason designers should always show wider images so that it's clear how it will look on a higher resolution. Sometimes I see live pages with simply another color filled in that space oustide of the design limits, which looks awful.