Well, I like your wallpaper. The two big scans of Kagome and Inuyasha are nice, good together. But, with Inuyasha, his hand (on the hilt of Tetsaiga) is very weird looking...color doesn't match up with the rest of his body. And, I'm not sure if it wasn't shown on the original scan, but his other ear is gone. With the way that he's standing, you should atleast see the tip of the other ear. *shrugs* Oh well! Also...the top screenshot of the two is a little pixelated.
But, all around it's a good idea and concept. The bg work is nice too...I like it alot. Nice work!