These are fab. You said that all work was by you excluding the bodies, so did you make the faces/heads? Because it is an excellent likeness if you did the faces. I'm working on a Loki sculpt (whole thing - face and body) at the moment and it's so tricky to get his facial likeness 100%.
Thank you very much! Yes, I sculpted the both heads, and they are casted at DollShe craft and available for purchase from time to time. I totally understand you as making the head looking like a prototype is a tricky thing! Good luck in sculpting!