Nah I guess he just has his arms hanging down all the time kinda like in the bottom of
this.
Which is pretty awkward.
You don't always have your arms just hanging down, do you? Especially not when talking.
Additionally, since the character is a kid, his head is even larger than seraphs.
Seraphs shoulders were pretty damn narrow already (jeez even my upper body is 3 times as wide as my head and I'm not exactly arnold schwarzenegger) but that kid is just over the top.
It just looks unnatural. I mean just look at the
bottom right panel. Head on a stick.
And I guess what he pulled on mary was some hardcore magic.
He's the main villains right hand after all, he's supposed to be hardcore, right?
Hardcore to the max.
Well maybe he actually is a squid with a human head or something so that look would make sense.
We don't know anything about him after all.