He looks great. His conformation is nice and solid. The only thing that really sticks out at me is that he is camped out a bit in the back but lots of Arabs I see are like that so I don't know if it is standard or what LOL. Sure, he could use some more muscle in his back and butt, but as horses age, it is harder to keep their muscles toned and they start to get a little bit flabby, just like people
. Lots of work long and low (nice extended gaits with his head down) will help to build some muscle in his back. If you ever ride him on trails, lots of hill work at a walk and trot will also help with muscles, especially in his butt. His weight looks excellent. He is a darn good looking boy.