I would use my main OC but he is torturing to use, so I'll use Botly instead.
Notes: -I really like how this one came out, I think it captures his character well -I immediately saw the claw arm and knew I wanted to do something with that, so I made it open and shut -For his idle break, I was originally going to make him show his "creepy smile" that you mentioned, but it was already a lot of frames for him to close his eyes, so I just left it at a blink, which works well as one of his eyes becomes empty and soulless