Congrats on the new purchase! Pretty awesome feeling isn’t it?
So curious as to what the humidity gets too and how you are gauging the humidity?
One way to do it is to add live plants like a pothos or an umbrella tree to retain the moisture inside the enclosure while also giving your Cham a lot more places to hide if it wants too, (which more often then not it will love to be safe and secure) your setup looks good but is a little bare, more foliage is definitely the way to go. I would try to add something live if you could. Like I said I used a pothos that was wrapped around a PVC pipe with coconut husk so it would fill the entirety of the enclosure. It’s on my page if you would like to take a look, got it at Lowe’s. But if you go this route you will have to figure out some kind of a drainage system.
Also is that bowl down at the bottom for watering? It doesn’t hurt to have one but Chams like to drink the water droplets off of leaves instead of standing water. Which is another good benifit of having live plants vs fake plants, the water will bead on live plants but usually absorb in the fake silk plants. Plus Vields like to munch on leaves sometimes so live is the way to go.
One more thing, I see you’re running the dual dome zoomed lighting system. You may want to switch over to a linear bulb instead of a CFL for your UVB, the CFL’s usually do not produce enough uvb to penetrate more then about 6-8inches into the enclosure. Linear bulbs will give you a much better look and be way more beneficial to you. Check out LightYourReptiles.com for lighting. Todd is a lighting wiz, he gave me my lighting and it turned my Chams personality around real quick. He came to life after I put that on him.
Sorry for the info overload but Good luck, everyone on here is very helpful and will have you set up with exactly what you need. Trust me lol