I am going to answer to the first option you had given us for this post
These two portraits are very interesting in how they wanted to relay their messages they seemed to try to give their people. First off my more favorite one of the two is Bust of Commodus as Hercules (BC) because it had a very peaceful message to it though it was initially a little intimidating. The intimidation was probably to show his enemies that he was not going to fool around with them and that his rule was nice and good but still a little stiff to get what he wanted for his people. If one were to look more into detail on this picture it is shown that it seems he is handing his people apples in his left arm to show kindness and that he doesn’t just care about power but toward his people to flourish and grow. I translated what seems to be a lion or beast’s mouth/face on the top of his head as a hood to be a sign of strength that he had killed it so he had the power to rule over his people. If one is to translate it though it had to be looked into details, as it is not easily interpreted right off the bat.
The next portrait being the Head of Caracalla (HC) was quite the face to look upon. This portrait/sculpture was very aggressive if not serious as well. It doesn’t look like there was any room for kindness toward whoever was looking upon it as the eyebrows were very much tilted downward toward his nose to show his feeling. Obviously it was a portrait to show a lot of power and scare the pants off his enemies as the enormous detail put into how the wrinkles were positioned across the face along with how the hair was designed as well. If I had to make a guess this was more toward his enemies but one idea I had gotten would be to point toward immigrants that he has no room for play and that his place is serious for no foul play. Unlike BC this one is very easily understood.
Comparing the two together it seems that their way of showing their messages are quite different. A good similarity between the two though is to show their people that they mean business. They both used the same material to put together their piece and gave quite a bit of detail into the hair but HC wins the battle in the detail into the face as it had quite a bit more expression and wrinkles to explain it. Though BC wins the battle with more to show it is obvious that HC had originally had a body or so it would seem since it seems that it had been knocked off a statue and though that had been destroyed the head survived to be shown today