A lot of people do it like this. When I construct a show-accurate puppet, I do a little tracing but since that brings down the originality factor, I've decided to not sell any work that might have some tracing done. Sometimes I copy and paste various parts from a puppet and use them to pose a puppet till it becomes my own pose like with all the pics of Discord in here. His face, horns, and a few other little things are pretty much the only parts that is close enough to what he actually looks like in the show. I had to custom-draw a lot of things in this like his hand gestures so they matched what Gru's look like in this scene from Despicable Me.