A few days ago I was weighing my BP and noticed a slight pink tint on his belly, so I raised the humidity to 70% and brushed it off as the beginning of a shed. Honestly I can't really tell if his skin is any duller so I decided to take pictures of his belly today to inspect further.
So how do I tell the difference between a shed and burn? It might just be my bad eyesight but the pink on his belly seems more patchy than a tint all throughout? I don't really know, but if anyone could help me distinguish what's going on that'd be great!
Extra info: my temps have been good; the hot side stays at an 80 degree ambient temp (measured with an AcuRite) and 89-91 hot spot temp (measured with a temp gun), but the cold side has actually been a bit colder than I would like at 77-78. He seems to have stayed in the hot hide for a few days as far as I know. I assumed this was because he was entering a shed but idkkkk
Pics:

Please tell me I'm just worried about nothing >.<"