Aside from the fact that photobucked seems to have cropped your wallpaper and it now appears in a totally wrong resolution and much to small to really say something about it: the required signature is missing.

Also judging from the small size the wall looks grainy and blurry. The scan in the middle of it seems to be resized from a smaller source and has bad quality now.

Please show us a version in the original wallpaper size. I suggest using imageshack for that ^^