I’d add some more cover. Plastic plants or live are great when vertically oriented. I’d also get something thicker than the jungle vine you have. This species gets large and they appreciate a sturdy perch to bask on from time to time. I understand the heat issue if it takes that much wattage to maintain ambient temperatures in the range you described. No need for a hygrometer. Most are garbage anyway. You may want to add a uvb during the day. I’m not a fan of night bulbs but if your night time temperatures are dipping below 68 degrees regularly than so be it.