Just because your model is ''beautiful'' it doesn't mean it is good.
Many factors play within the model.
The appearance is a little piece of it.
If the physics are glitching, if the rigging is very bad, if the joints crash easily, if the facials are not well made, if there is no effort in it, well then I ask you, what do you want to do with this model?
What do you want to do with a model with a beautiful appearance if she/he can't even spin without glitching?
Appearance does also count
but don't forget the other factors.
(All these things are not easy, really. I've done now two models where the outfits were completely from scratch, I can't imagine how it is to rig a whole model from scratch. But I've learned so many things from it.)
Groups helping you with your models: