Good upper body with excellent lats.  His arms are weird -- they look large and balanced from some angles, but small and undersized from other angles.  Probably a triceps imbalance somewhere, small lateral head or something like that.  (The side triceps pose at about 1:00 is suggestive of this.)

The crazy thing is that this guy has zero hamstrings, and I mean none.  Looks like he's never trained them.  Dead serious about this. 

He basically looks like he hates leg day and just does a couple of lazy sets on the leg extension and seated calf machine, lol.

How were you doing the hack squats?

Brother Taffin can literally taste that glass from underneath...