It's an appropriate amount and don't even try to tell him otherwise. Besides, he would grab more if he had more arms!
On a side note, I want to start uploading works beside my paintings. I finish drawings on almost daily basis so most of them are going unseen. I don't want to post straight up sketches here, so I'll work on finding good middle ground where there's enough detail but I don't have to spend hours and hours to finish one thing. If you want to see straight up b&w sketches, you can check my twitter for stuff like this: https://twitter.com/imkuut/status/1533593262895898626