I can see where you wanted to go with this wall. One thing that you have to keep in mind is whenever you use a moon from a stock photo, it's usually too photorealistic to fit in anime walls. So try editing the moon so it's less photorealistic by using mutiple layer edits and filters and such.

Also, you did a nice job on brushing the lighting...except the moon doesn't give off lighting like that =\ It gives a soft glow to everything, so there's no need for a shadow that strong on the character unless there's a tree or building of some sort in the way. The text is very pretty, but it's a bit big.

Overall, you wall is nice, but the things that I pointed out are dragging it down a bit. Other than that though, the mood is nice, and the lighting is pretty good, even though it's wrong. This wall shows you have the vision and the concepts down, so good work :)

I like the background, but the fogs seem too circular for me ^^ Fogs are supposed to be mistier and fluffier aren't they? The text looks nice, by the way, and the clouds and moon look very scenic too, although they are a little bit 3D compared to the character ^^ Good job with the wall too~