Sleepi_Amygdala, you could edit the model in blender to your liking if you know how to do that, or you can use Modular Avatar in Unity instead. Just find whatever part you want to change under the armature for example the breasts, and in the Inspector tab click Add Component, then add “MA Scale Adjuster.” You can mess around with the scale adjustment to your liking, but make sure you do that separately and not on the same root. like for example Boob_L and Boob_R instead of Boob_Root

The fact that the creator says this avatar has "pudge" when she's literally just a stick with butt and tit implants.