The 3D Player Model Mod gives a more realistic shape to your character. It’s especially the legs and the head which look a lot more realistic since it got more depth, even a pair of ears have been added to the character. As a result of the new player level you will also move a bit differently.
The motion of the character looks currently a bit unrealistic but it just adds to the funny-looking aspect of the mod.
To shift to the 3D model tap on the bottom-right 3D button and a menu will pop up. Pick the option which best suits your player skin.