/ic/ - Artwork/Critique

Alright, so I've been trying to help out my friend here. She and a couple other Discord buddies are hell-bent on saying these circular boobs are right because of "clothing" and "bras," when basically everything else has told me boobs are never circular. How would I explain this to them? I tried to say that the boob don't connect to the armpit and posted a couple picture guides, but their shimmery basically amounts to "not all boobs are that shape bro."

(And yes I told her she shouldn't be monetizing her art at her level but whatever.)