Really interesting idea, a bit too dark in the upper left. I think it really just need a bit more contrast between the branches and the sky, similar to the lover right hand part of the image.

Once enlarged, the beauty and grace of this image are superb. We should click on images whether they look good as thumbnails or not. However, I do think that having a striking thumbnail puts the rater/commenter in a favorable frame of mind even before the image is enlarged...first impressions and that sort of thing.

I don't care that the entire tree is not visible. This is excellent work, fascinating and pleasing. High marks from me.