Wow! I really like it! Everything fits together really well. The only thing I can see is maybe changing the text a bit. And maybe your name shouldn't stand out so much. it's like purple, blue, white, then..... GREEN!! :-)

How cute!
I really can't see anything wrong with it, (except the sig thing that lucas mentioned)
and the sky has these noticeable lines where it goes from purple to blue, it would be better if that were more smooth.

What a cute wall! ^_^ I'm not sure if I'm the only one...but...I see a bit of artifacting? Is it because of the original image or the compression? I'm not sure...

I do have to agree with the above comments on how you should change your sig a bit to blend in with the background better and not stand out so much...you don't want your sig to be the focus of your wall do you? ^_~

But I've never seen this anime/manga before...or is it Original Art? Do you think that you could post the orginal too? Or where you found the original scan? That would be great! ^_^

I actually just noticed something now...your wall...the link is http://i32.photobucket.com/albums/d32/klumzy_eli_1/_Slumber_Kingdom__by_toi_chan.jpg...are you toi-chan? Because it doesn't match your name at all...

But if it ISN'T your work...you aren't allowed to take other people's work and put your sig on it and call it yours...it's not nice to the owner of the work...

EDIT: I actually found the original ( http://www.deviantart.com/deviation/34811111/) I now have a right to believe that you did make this yourself...I'm really sorry but...this wall is definitely not submittable since you did not make it...

Did you really make that? I don't think so...I found this wall somewhere else and it was made by a person named Toia...

Wow, that's really crappy of you to steal someone else's work.
:(