What i really like about this painting is the way the white pops out even when the difference between the white and the background is very subtle. It leads the eye over to the head and back of the bird, which is beautifuly textured. The color stains seem incidentally but carry the foreground very well and gives the pic some more depth.
The Brackground is very good chosen, the structure of the "Paper" makes the overall Image feel compled. You done a very good job on the balance in this piece.
The only thing i would personally chace is the transparency of the lower part of the wing.
(Ps: please Xuse my bad Iglish)