Stop with the mineral oil for 1. That is why in the first pic it looks like you have actual scales which have fallen off. Any oil based product is going to cause this eventually. It is not natural for them. Hm. Maybe someone else will see something I don't, but I see no stuck shed, just an oily snake. Does he seem to have stuck eye caps? That would be a sign of a stuck shed. Ummmm. Run your temps and humidity level for me. Do you ONLY use a lamp, or is also a heat pad available? With what are you measuring the temps and humidity?