Mega-Naga (Patreon)

I also included a more canon-ish version.

I don't disagree that she usually has a much stronger personality, but I did decide to keep her expression.  I kind of felt like especially with the big one that's she'd reached some satisfied place.  Like she's proud and doesn't even need to brag.  I tried other expressions and nothing felt right.

Also one of my reference shots was from one of the older Slayer anime movies and she had this kind of pleasant expression in it.