My limitations involve not allowing my morphs to be packaged for sale, as the raw morphs, without I get a cut. You are free to use them for characters for free stuff or for sale. Your face morphs should be combined into one anyway. And in this case , the resulting morph is yours - your creation. I do not limit the use of my morphs for use in characters for sale. I do not require it, but it would be nice to get a copy of any figure - encouragement as it were.