I am not a judge, I've only been showing GSDs for 2 years so this is in NO way an *actual* critique, lol. His body is a tad short and his rear looks to be carried higher than his front. His movement pictures aren't really of much use since he's stalking, which makes his high-rear look EXTRA high! :P
Over-all he looks to me to be front-heavy.
But, more importantly, he's adorkable! Love it!