Of all the MGs, Bella's look is the only unrealistic one, gigantic boobs to please the fetishists and at the expense of realism. All the other girls are mostly natural looking except for a few SG MILFs. The first thing I did when I got to Bella's model was to try to make it more realistic:
The new guy at DAZ is here. These are really models for DAZ3D. But in this engine, they can be corrected, changed to your liking, and even mix several different models in one - all this is called "morphing". For example Jill is a completely original "P3D Imogen for Victoria 8" model.
And many other girls, such as Zoey, Bella, Sage, Josy, have gone through complex morphing from different assets.