>>302491993
I don't know the first thing about creating avatars or unity or blender or any of that. Completely alien to me. 

>>302493901
Negative. 

The only good ones I've seen are flat chested, androgynous face, with wide hips, amazing ass and a bulge (sometimes with jiggle physics).
Then you have the lazy people who use typical anime girl assets and just a slight bulge that can't even be seen unless you're a small avatar or literally on the floor looking up. There's only two actually decent creators at making them. 
One is so-so but apparently does take commissions. Results (if basing on their other work) would be "Ok". 
Other creator has a style that I like, but gives them shark teeth and horns. No custom work allowed, we only get his old avatars while his new work is just for him.

What I hate is I'd love one of his but edited to fit my tastes/needs. But he frowns heavily on those who rip and use his assets. 
His fan-base also seems to hate on people who make avatars heavily inspired by his. Saying they're just a rip-off or whatever.

>>302496453
I've wondered this for a while and the answer is to just stumble upon them. 
Sometimes you can find people who make them and sell basic package deals where you basically buy the model and they'll edit the colours to fit you, add or remove little features here and there and then you upload it to your own account.