Welcome to the site. Ok I didn't see any mention of anything to measure those temperatures. You need to be positive that your hot side is 92-94 degrees and your cool side 82-84. Those temps need to be constant 24/7. It looks like a very nice natural setup, but as you already mentioned housing two snakes together is not a good idea. I would put more hides in there. Two hides hot and cool side and then maybe a few more for good measure. Juvi snakes do not like open spaces and the more cover they have the better. I would make sure you have your temps up in the right range before offering food. They need that heat to digest their meals. Walmart/Lowes or similiar store sell digital outdoor thermometers that can measure temps and humidity. They're so much better than those strips or dials.