I agree with that about size and musculature, and actually wrote in the forum about that, but they replied that at the moment they do not intend to give the option to customize that.
The truth is, I don't feel comfortable wearing super big and strong characters in games (like the human model who looks like bodybuilders) I like to feel that my characters are agile and not a gross muscle mass
The undead model will be completely reworked, as this model is an old one that won't be used.
For the rotten things I guess it can be made, as for the hunchback we have discussed that, and we don't really like that.
For muscles and sizes, for now they won't be able to be changed, maybe in the future, can't really say.