I agree...crop a bit of the darkest part off and leave enough to finish the flow of color from light to dark. Also, not sure how big the crop is here but it looks like you've got some good noise going on in the darker half of the image. Try a run through of noise reduction and see if that helps.
These images are really beautiful Valerio! The color in this one is absolutely stunning!
Hi and thank to everyone. Julie: no crop. yes the lower part is darker, but it dosn't bother me.
Mike: the image was influenced by others, steeped in my mind, one is your.another was by Manuel Presti.
Comparing to the previous 8-14-08 I prefer this one.