Ball pythons really need belly heat to aid in digestion, so you need to get a thermostat and a UTH. I'd get rid of the lamp, because that sucks humidity out of the enclosure. And get a digital thermometer/hygrometer and replace the analog. Get a second hide. The water dish doesn't need to be any bigger - it looks plenty big to allow him to get a drink of water.

For what it's worth, I do not cool my snakes for breeding season.