Graphics looks very good, maybe just a little touch up around the menu corners.
But I agree with diablo( two posts up ) this is a fixed design. There are a lot of sites with fixed width, even this forum. It would be nice to see more designs utilizing all the empty space around the edges, especially with most of the modern monitors being widescreen. The question is how do you keep the feel of the site and all the graphics looking as great as it looks right now when the window is stretched ever which way. I would suggest taking all the nice stars leafs and butterflies you have and making them separate images, so when the page stretches they just fly a little farther apart from each other preserving that overlapping look you got on your login menu. In my opinion it's better to have a site which looks great in most resolutions than the one which looks fantastic in one. I hope I made sense.