Well, in simple words: I have made some corrections in the scientific vanillas, trying not to touch them much. The arrangements are:-The main and most notorious: the mouths, their teeth and some proportions of the faces
-I have unified the texture of the body so that the divisions between them are not noticed
-And I have fixed some proportions of the body
I also made an optional version with more detailed textures using the same pixels as the original textures.
With Barney, I replaced it with Leonel's model, which fixes a lot of bugs what be in the vanilla model, and just put the textures on it without scaling.
Credits to Leonel'C who uses the heads of his Scientist and the model Barney, from his addon "NeuralPack"