Ithink the second picture on top, shows him standing best, to judge conformation
To me he looks quite well balanced, with a neck that teis in nice and high, although not fond of the dip where it ties into the whithers
Nice slope to shoulders,, and good short back
I would like to see a bit more bone,but appears to have clean limbs.
Typical OTTB, far as toes a bit long, and heels appearing somewhat under run, He does appear like he might be landing toe first, but a picture is only a moment in time, and with feet done, and video, way better to judge movement
I myself have taken picture of my horses, while lunging them, with some frames looking very good and others where a wrong moment was caught
Over all, looks like anice horse