I got him this afternoon. So, he more than likely is stressed. I took those pictures while he was exploring after entering. Other than that, he's been in his hide.
When should I try feeding again? I don't want to overexert himself, but at the same time I don't want to starve him.
Try feeding again in about a week to a week and a half. They don't need to eat much, 2-4 crickets a week should do him fine, and you can feed them all in one sitting if it works for you and him.
1.0 Normal - Maynard
1.0 POG - Victor
0.1 YB - Diana