Wow, this is magnificent. I really like the gradient BG and how the colors work with the subject. Beautifully exposed and 3D sharp. I agree the HA could be a bit better. Composition is great.
It is a bit tight in the bottom and I would tone down the BG just a bit. Perhaps it is my monitor but I think that a touch of color balance to warm up th ecolor temperature would be great. Terrific details and sweet BG :)