The cage is very small for him. You will want to get a 2x2x4. I use the 2x2x4 reptibreeze for my little guy, and he's only 3-4 months old and uses every bit of his cage.
It also looks like the majority of your plants are fake. Veiled chameleons love eating plants, and if they eat or try to eat a plastic one is can cause mouth injury and impaction. Pothos are great because they grow quickly and fill up space very well, and are literally invincible. I use schefflera and Pothos. Hibiscus is also good but it is harder to take care of if you don't have a grow light (learned that the hard way lol) You can find really full and long Pothos at Home Depot or Lowes. I got my schefflera ( Umbrella plant) from lowes, most lowes have it. No need for organic plants, just repot with topsoil and rinses all of the leaves really well. Cover the exposed dirt with 1-2inch stones. They are like kids they will eat the dirt.
Bulb kits are normally absolute crap. They make it out like you need all these things when you don't. As
@MissSkittles said change your uvb to a tube fixture and throw the coil one in the trash. For basking bulbs you can pick up a 60-75 watt bulb specifically for reptiles, or just use a regular light bulb ( Not colored!!)
Uvb light hood:
https://www.amazon.com/Zoo-Med-2605...1_10?keywords=reptisun&qid=1575158322&sr=8-10
I don't see a digital temperature probe. Get rid of the little circle ones, they can be up to 20 degrees off.
https://www.amazon.com/Qooltek-Ther...ital+temperature+probe&qid=1575158388&sr=8-11
Add more branches for him to climb on. I use Bend-a-branches, they aren't rough on skin but have some soft texture. You can also use wooden dowels, bamboo sticks, driftwood, ect. Veiled's need different branches to climb on with different sizes to exercise their feet.
If you are having trouble with humidity during the day, ive heard you can wrap a shower curtain around 2-3 sides to keep in more humidity. No foggers during the day.
You can keep the paper towels if you want, but I personally find it easier with a bare bottom that I can just wipe with a diluted reptile-safe cleaner one a day.
Ive got no place to talk here (my drainage needs some work lol) but make sure you've got good drainage so its not constantly wet in there.