Comparing #12 to #21, I would describe (poorly, I admit) #12 as having almost "pugilistic" features compared to Epicurus' typical portrayal. That's a bad word choice, but the one that comes immediately to mind. Look at #12's broad, short nose, compared with Epicurus' relatively long, thin nose. #12's head shape seems thicker, Epicurus' longer.
Put another way, I picture (rightly or wrongly) Epicurus as an ectomorph body type based on his typical portrayal, whereas I picture #12 as more of an endomorph type.