Looks like a Welsh or a Welsh cross
Hard to guess his age with just photos, but if I had to I would say mid teens...
As for conformation; he's got a nice shoulder
Neck set is decent, though it looks a little undermuscled
The depth through his girth is good
Short cannons in the front legs and possibly buck-kneed
Bum high but the length of his back is not bad
Steep slope to the croup and rather oval hindquarters
Appears as though he would square up nicely in the back legs
Looks to have some QH in there with that jowl.. but from the hand position I would say this horse is quite small.
Like his shoulder.. wish the point of shoulder were higher and more open. Would like the peak of croup further forward. He appears down hill but on further inspection not really THAT downhill. He has very sturdy legs and good angles to his hind legs.