I like this, it's awesome, though I've never seen any Classic Who I can say you did the older Masters justice. The one thing that bothers me is that John Simm's Master looks like he's sucking his cheeks in, is it supposed to look like that?
Very nice work, I liked the emotions displayed on each of The Master's regenerations. You were very detailed in that respect, from the innocent looking eight year old Master, to the look of I assume to be a calm and collective look of supeiority form the 6th Master. A very well done and detailed artwork. I applaud you.