Wow, your vector is really nice (I don't really understand your description, so I assume this is your vector)! The hair is really pretty. And for her expression, the BG is quite nice! The coloring is also lovely 8D.

But I think that she should be moved over the right a bit so that her entire right side is shown (her bow), and that the trees should be extended slightly to the right near the lower half. That way, it would look more like she was placed on the left side rather than being cut off and there being too much room on the right side. Oh, I also think the text is too sharp compared to the rest of the wall, which kind of unbalances it more. It would look nice without text too.

Still, I find this wallpaper really attractive, so I'm going to fave! Too bad she comes from an ecchi series. I can't beleive I'm faving it. Well, for this image only...