No offence (even though he is not yours) but there is somethings I don't like the way he is put together. I don't know heaps about confo but these are my thoughts, I could be very off.
In my opinion he has too long of a body, too short legs, and his croup is too high. Sometimes his front pasterns look too sloped - but I don't know about the correct angles, they just don't look ideal to me, and sometimes his neck just looks too small/narrow for his body.
Also, his hindquarters don't look like what I would want from a TB. He seems quiet though, and well behaved, but I thought he was hollow when ridden but I guess if you're a western person it doesn't matter. Temperament seems good.