This is probably a question I should've asked you guys a long time ago, but having just thought of it now - I might as well start now!
So, what kind of body details and proportions do you like on these characters?
In general, I like to look at the character and see where they fit relative to other characters. Sometimes I might take what's already there and exaggerate it (make the boobs bigger), other times I keep the proportions - especially for the few flatter characters that make it through the mix. I quite frequently 'enhance' proportions... these are usually subtle edits to the original proportion designs - which I find to be quite necessary for Genshin due to its plain body structure - while for ZZZ it's relatively unnecessary as each character has a lot more individual variation (and thiccnesses where it counts).
For body details, there's the always omnipresent and vocal minority that asks for pubic hair - but beyond that, we can do things like bigger/darker/lighter/smaller areolas. We can even change the shape of the belly button from innie to outie (although that's not one I've done before now that I think about it). For the upcoming QingYi from ZZZ, we've given her a complete cyborg doll body (with and without lewd attachments), so I'm happy to explore the weird and wonderful too!
Anyway, I thought it'd be fun to gauge your opinion on these things. They won't necessarily directly impact my mod designs, but this sort of feedback definetly helps influence my thinking and what I end up producing, especially down the line on things I don't have a strong opinion on!
Pick as many options as you like - even if they conflict, I'll just assume that it means you like the variety!
If I haven't listed any you're interested in - just write it in the comments below, and like it if someone else has written it for you!