Not a bad horse at all for 16. Back is long and weak so it would help him to do work trotting up hills and over caveletti to build abdominal muscles to support his topline.
Seriously, if he is fox hunting and sound at age 16, I don't think conformation critique is necessary. Any concerns one might have about poor conformation has been blown out of the water by him being aged, sound and still working.
There is something about the outside of a horse that is good for the inside of a man. ~Winston Churchill
) Dinosaur Horse Trainer