Upgrade

Here's the first upgrade for my big noodle. She has been in a 40 gal fish tank for about 8 years.(4th Pic taken a couple days ago) (I've only had her the last 1-2 years). When she came to me she was on dishtowels with a single bark hide, and one stick with a water bowl. Now after doing lots of research and spending lots of paychecks on the right equipment, she finally has her first upgrade. It's a 4×18×18 repti zoo. (I'm fully aware that her being 5 ft she needs a bigger one, this is just the stepping stone) I'm currently still trying to diy her 5×2×3 tank, but for now this is what I've been able to put together for her. For the drainage I used lecca pearls, with a handmade wooden frame and fine wire mesh to keep the dirt separated. In the Pic, you see the frame, and it's deceiving but there is about 2.5-3 inches of dirt/coco core then sphagnum moss/ magnolia leaves. The previous tanks I had my babies in had a well established isopod colonies and springtails, so I pulled some of the dirt from the old tank to inoculate the new one. The hide on her left I cemented some marble esque tiles to hopefully be simulating to hot rocks in the wild, and a good basking spot for her. I wish there were more space for a 3rd hide in this big tank, but the cork bark and water bowl take up too much room, so instead I'm sewing a hammock hide (something like a soft fabric sack ) that I can hang on her cool side. The Temps are a little low rn because of the new substrate, and setting up the new thermostat, but I am making the transition to DHP bulbs, and it has been tricky finding them in stock. I have one so far, but I feel that this tank for how big it is it needs 2 or 3. Totally coincidentally yesterday I found a little fountain at good will, so I brought it home and scrubbed it real good, and put that in there hopefully to help with the humidity, as well as it has a small leak, so I put the live plants around it and hopefully that will help water them lol. So far she loves it, I've already seen her slither on and around it, and drink from it instead of the water bowl. So besides getting the heat gradients on point, I just need to seal the top (but I want to wait until I get the final arrangement of lamps before I seal it.) What do yall think? Is there anything I can improve?