Yeah, he’s bigger there. Also gotta realize, strength does not necessarily equal mass.
I can’t say that enough. Some people don’t know this. You can be totally ripped without being particularly strong (relative to how you look), and you can be crazy strong for how relatively normal you look.
Case in point: Bruce lee in his few films doesn’t look all that cut. He looks fit, until he flexes and then holy fucking god.

I mean, holy shit, he looks like he can glide with those wings.