Cassar, the left hand looks 'off' to me. I'm trying to figger out why and the only thing that I can think of is that you have the rifle seated to much in the palm of the hand and not on the ridge of the hand between the pointer and thumb? I guess I see the tips of the middle, ring, and little finger should be ruffly in line with the barrel with the pointer on the the bottom of the hand grip and the back off the hand/ knuckles parallel to the ground.
Just my two coppers, excellent work as always!