Setup looks pretty good for the most part and it's elevated above the floor, which is a necessity.
For the UVB Reptisun 5.0 is the most recommended one here--the long bulbs, not the compact ones. The compact bulbs have been linked to serious eye problems and blindness--so most people here avoid those compacts like "the plague"

LLL, a forum sponser, sells the bulbs and the fixtures at prices that are less than half of what I'd pay at a local store.
http://lllreptile.com/
I hope you have checked the temperature where she will bask and in several other places. Nobody wants to cook their cham--and they can (and do) get burns if they get too close to too much heat.
I don't think driftwood would be of any use to her. Chams are all tree-dwellers, so they stay in their plants and on vines. Looks like she has plenty of climbing and hiding room.
Another missing thing is a dripper--and I hope that's not a water bowl at the bottom of the cage.
You can buy a dripper or you can take a plastic cup/bottle or one of those plastic food storage containers and put a pinhole in the bottom of it, so the water drips down.
Chams won't drink from water bowls and they can drown in surprisingly little water---remember, there aren't any puddles in trees

She doesn't need any special spray for her skin, but if she doesn't mind getting sprayed, that's good, cause she'll probably let you spray her with water, which stimulates them to drink.
The final item, as mentioned by Kinyonga, is a laying bin.
Here's one thread about them:
https://www.chameleonforums.com/best-medium-egg-laying-31425/
Kinyonga posted some really good links and her ideas and questions are very important.
In addition to plain,
phosphorus-free calcium powder, Rep Cal calcium with D3 and Herptivite (a vitamin supplement) are pretty popular with the forum members.
These last 2 are usually only recommended to be used 2x a month each for adult chams. It's different for younger chams and the montane species like Jackson's, Fischer's, etc.
The plain calcium is often used at each feeding or every other feeding (except when dusting with one of the other powders).
Here's a link to Sandrachameleon's thoughts on supplementation:
https://www.chameleonforums.com/blogs/sandrachameleon/65-supplements.html