Excellent imagery, although the meaning of "scratch winter sky" is a little unclear. On the other hand, that might just be me. ^_^ I like how you used opposite colors, at the beginning (black and white):it really helps to show the contrast of the branches and the isle. Good job!
This shows a very creative mind yourself! I'm not sure I'm seeing what you had in mind, I see trees peeking out of snowbanks, little islands of dark amidst the white, and of course the scratching at the sky in the wind. I would have chosen a few words different here and there, but that is to be expected in something as personal as poetry. But flawless work! Dave
I like the saccadic rythm especially from 3rd verse to 6th. A bit of horror movie background atmosphere. I like the general description small, but I think with a little work would make a nice duo of haikus. good work.