I finally finished this model, it took me a lot of work, well this model has two skin and also has two types of skin textures, I leave these images so you know how to change skin textures I know it is somewhat annoying to do it one by one but due to my lack of experience in making a controller that does all the work without having to do it texture by texture it would be great, but I don't know how to do it.
Well you just have to set the color mix value to 1.00 to change to the other texture and you should do the same with arms, face, lip and the others if someone knows how to create a controller to change textures with a single node I would appreciate it for future models like this and that it doesn't cost a lot of work, enjoy the model, if I see that you like it I will make more, personally I hadn't planned on making models of the rivals game because it didn't catch my attention and plus the work it took me to make just one I don't know if it was worth the effort.