Hi David, the sofness and pastel tones, as well as the low contrast in this image render it almost a complete abstract. Especially in the thumbnail, which attracted my attention for that reason.
Capturing the leaves in aloms the same hue is very clever, though. It adds alot to the atmospere. Fascinating.
As to the composition, it is a bit straight forward for my taste Litterally - I would've liked to see this using the diagonals, as I think that would add a bit more dynamism and tension to it.
Nonetheless a very subtle shot, very well captured, with an amazing DOF.