You want comment? You got it. :D
First off, I like Galaxy Angel so I'm glad you picked on the character. Looking closely at downloaded wallpaper I think you could do little more work to make the character more smooth in appearance. I see some rough edges around the wing and lower portion of her body. The moon background came out pretty clean to my untrained eyes. The shooting stars looks little too blurry but I presume you did that deliberately for an effect. Overall good wallpaper and thanks for posting it here. :)