what the hell? this isn't korgie i knew.
first of all, the scans of both character is extremely perfect.
that's the style i knew from you, six month earlier.
the mech objects behind the two character are well placed, along with the perfect shading but of course, some lightning mismatch but isnt noticable.
the sky may looks great but some cloud appears to be more blurry but this is some mistakes you got, the clouds below are supposed to be more blurry because of the mountain below.
and for the whole wallpaper.. it seems that the whole wallpapers are somehow dissolved, maybe you should adjust some curve or else people start notice that the wallpaper is a little bit too sharpened.