Hadrian is one of my favorite character. But I haven't drawn him a lot, to the point where I actually forgot HOW to draw him.
He's a Gastonia, aka a whackity-whack from Robert T. Bakker's Raptor Red. I don't draw beaks on my ankylosaurs, just an aesthetic choice on my part, not ignorance.
General Gist of Hadrian: he's the epitome of the Taurus personality. He's slow to anger, but easy to irritate. Expresses his emotion through his actions rather than speaking them. Prefers quality over quantity, not a very ornate or design orientated guy--so he keeps things simple, but nice. Very family and friend orientated, and not beyond helping strangers out.
Might initially read as bit of a d*ck, but is a good guy.
Flips cars for fun.