first of all, Narr i <3 your niece. if she were a little younger, tho, i'd interpret her facial expression as "i'm trying to poop." oh, and that gh guitar she's holding is wicked.
this is my desktop at work. can't recall where i found the wallpaper, but kudos to the dude who made it.
i, too, am fickle with wallpapers and change them up pretty often. before XP and the shiny roundness of the interface, i used to tweak my windows appearance colours to match the image.
when i get home i'll try to remember to post my fave wallpaper, one i keep going back to.