The post might contains some spoilers.
Significantly, he's holding Padmé with his remaining human arm (his left arm) and Clovis with his artificial arm (his right arm). It's a bit difficult to tell because he's wearing gloves on both, but the glove on his artificial hand is a bit thicker and has what look like clasps:
The arms with which he's holding these two characters illustrate the different type of connection he has with each. He has a very close relationship with Padmé, so he's holding her with his remaining human arm. On the other hand (literally), he hasn't trusted Clovis throughout this arc of episodes (thinking he's too involved with the Separatists), so while he's holding him too, he holds him with his artificial arm, which symbolizes that distance between them.