What are you breeding for? The type of stallion you have should reflect what you want to market your babies as.
If you want to breed Nationally competitive halter horses, the stallion should have that ability or quality.
If you want to breed competitive driving horses, the conformation would show that ability and talent in the horses you breed, etc.
I don't know how thorough a critique you would like, but he has a very heavy neck and very thick throatlatch, which may make him difficult to set his head as a driving horse and is not generally desired in the halter ring.
He has a very short back and a low tail set, seems very heavy on the forehand.
He looks to be correct in the legs and has a pretty face, and of course is very colorful! He looks well cared for.
Congratulations! It's always exciting to get a new horse.
Andrea