It might look better if you manipulate the background so that it looks less 'real' (if you get what I mean) the scan is too 2D compared to the galaxy thing...Other than that, I think the character's pose and expression suits well with the background ^.^ Great job on choosing the style of the wallpaper ;)

By the way, is it Card Captor Sakura? I never saw her before

Anyway, good luck~ I hope to see it in the gallery soon~

Hmmmm. Two things I want to highlight here.

Nice font being used but somehow, there seems to be a translucent box in the background of the title. I do not know whether it is done on purpose but my opinion is that the wall would look better without that translucent box behind it. An alternative would be to apply outer glow for the words of the title. I think that would match real nice with the wall.

Next, the thing that looks like a face on the right hand side of the wall looks weird to me. Somehow, it does not match the mood of the character scan. The background however is excellent. I would advice you to replace the face with a bird, outlined by stars, on the top right hand corner of the wall. This would make the character in the wall look as if she is really reaching for something.

Really hope to see an edit of this wall soon. Will favourite it once I think it is good enough. All the best luches :D