It looks like your overused the sharpen tool as some of the hand has pixels sticking out, particularly the bottom edges of the lower three fingers and the background around the first finger and thumb. Maybe some smudging and blurring could fix that. Otherwise this image is fantastic.

Hi Visba - thanks for the heads up - No sharpening of the hand took place - It was the chop for the shadow that messed up the result. I think you wont see much now. Take into account the photograph is of an aged hand and the skin texture is not smooth like a young persons.