The circumstances that had Atem appearing in another ruler's court are murky and full of betrayal and shadow games. He doesn't bother to hide his anger at being brought to his knees in front of another ruler. He'd been told what he is there for, they'd even performed a magic spell to make sure that if he is chosen he could bear children for the Emperor. The indignities seem endless for the pharaoh but what is worse is not knowing the fate of his kingdom.

He had been stripped of all that would denote him as a ruler himself and placed in simple trousers and peasant shirt.

Even if he's kneeling he looks up at the Emperor directly. He might be angry but he's not afraid.