I thought he looked quite wirey too, that still didn't stop him ironing out a few blokes this year.
Pre draft although he looked long limbed and skinny he actually was very solid.
Deceptively solid/chunky IMO.
If you just looked at that photo you would think he was a tank based on his thick neck/traps/head shape.
He's still 18 and growing into his gangly arms/legs etc.
He will fill out very easily, very Cousins-like.