I will add, your scope appears to be mounted slightly too far rearward.
Just out of curiosity, why does it matter if its a little farther back if thats where he wants it or where it fits him best? I'm asking this because a couple of my rifles with longer lengths of pull have the scopes mounted about that far back. They are mounted that way because I'm short and it helps me to not have to lean in farther than I want to so that my eye is the correct distance from the scope. Are there negative effects when mounting a scope that way that I dont know about?