You definitely should add a hide <identical to the other> on his cool side. That is a very large enclosure for him... Might want to clutter it up. Vines, leaves, rocks etc. that will help him feel more secure as a hiding bp is a happy one. If the back and sides aren't blacked out, you might want to do that as well. I'm not sure if you mentioned... Do you have his heating pad on a thermostat so you can regulate the heat? Those things can get to 130+ degrees which will burn him badly even in a short period of time.
As for his hunger... He's definitely making up for inadequate feeding. Once a month is not enough. How big is he? Weigh that is.... If we knew that, we could give you a better idea of the prey size he needs to be all fat and happy after a feeding. The fact that he went for a f/t prey so quickly after only being fed live tells me a lot. That boy is HUNGRY!!!