I'm not the expert to ask, really - the story of that last commission was a twitter prompt of the artist asking "show me your OC and I'll suggest some monster-ish alterations" - I liked their ideas and wanted them to have fun drawing it out as a sketch commission later!

Lemme try anyway, though? I mean, aside from Amaryllis Leopard obviously having the size and prominence to accomodate, I think there's a good extrapolation to be made of animal(people)'s tails having "a mind of their own", doing its own sort of emotes that can be either complementary or totally at odds with the facade of the rest of them... you know, giving that even more agency to emote, lick, tease, bite, and perform all sorts of maw activities in orchestral concert with a lovely lady who's weaving her own schemes at the same time? It's a lovely accessory.

two answers, depending on moods:

1. big enough
2. bigger than that

EZ answer is that I'd love to be a jaguar - rosette creature just specced into 'power' and 'swimming' instead of 'mystic mountain charisma tailfluff'.

nonfeline, we could go something as closely mapped as "dragon woman".

if you want something further afield, maybe, barn own comes to mind? masked faced lovely