Nice snake. Good thing you seem to have gotten the temps and humidity right off the bat. I know I still fight it sometimes.
Keep an eye on him climbing on your thermometers. Especially the analog ones with the sticky white tape on the back. My first Ball knocked one off (looked just like the gold one in your pics) and I came home and found him curled up with it stuck to his neck. I mean STUCK!!!When I finally got it off it required a trip to the vet to treat a small wound.
It was bad for all parties involved I assure you. Ever since I use probes instead.
Good luck