Firstly, I've finally come up with a name for the demon possessing Evan as well as a proper design!
Here he is!

This is Flauros! He is named after a Duke of Hell/ demon of the Ars Goetia known for deception and dishonesty that often takes the form of a leopard but can take the form of a man with glowing eyes and a cruel expression (I think). Obviously this bad boy isn't very leopardy but I've always drawn him with a feline grace so I assume that's good enough. As for the form-shifting, I think possession works just as well.
So yeah, I did my research and now he has a name!

And our boys ofc <3
Happy over 1k messages TheAddieDragon