If you want/need more viariety it is pretty easy to repaint the models. Download the diffuse/image (from the Custom menu of the model) and paint inside the lines,
This is what the Janissary skin looks like.

After you have modified the image, upload it to Imgur (or similar) and then open a copy of the model and change the Diffuse/Image to a direct link of your new paint job , then import.
If you any questions feel free to ask me.