I don't think that is the same horse as in the dankearab pic.
He should be much nicer looking when he gets some groceries in him.
I would not consider him part Arab just because he sticks his tail up and prances around , most horses when let loose will pop their tails and prance and snort.
Is his face dished ? He looks like he could be part gaited breed saddlebred, twh , paso fino .