Hey and welcome to the forums!
Sounds like you got a good knowledge of what you're doing so far.
Just a few things i'd like to chime in on.
For your misting, be sure you let the entire cage dry out before each misting. I usually do 4 mistings a day for 3 minutes each at 3 hours apart.
If you leave the cage damp/too humid all day thats heaven for respiratory infection, as well as fungus/bacteria.
If you're trying to boost your humidity up, be sure to add a few live plants in the cage. A few i'd recommend are Ficus Benjamins, Hanging Pothos, and Umbrella Plants.
Also having a Dripper will boost up your humidity alittle aswell. This also helps your cham drink if you never see him drink from leaves when you mist him. As for my situation, my cham doesn't do this so i have to provide him a dripper...But i see you have one so you shouldn't have a problem.
As for mealworms, stay away from those. Their exoskeleton is pretty thick and hard to digest for chams. you can feed him those for now, but try to stay away from them. I usually fed my cham mealies when they molted (shed), they'll look a bit white when the molt.
Some feeders i'd suggest are small brown crickets, small dubias roaches, small hornworms, small silkworms, calcium worms, small/medium sized superworms, butterworms, and the occasinonal waxworm (Only feed 1-2 a week, this will help them build fat
). Feeder variety is key!!! Chams get tired of eating the same thing over and over again. Also stay away from "treat" insects, they can go on food strikes and wont eat for weeks. (Superworms, waxworms, and mealworms just to name a few). Usually the rule of thumb for crickets are the length shouldn't be longer than the width of the chams head. (eye to eye).
Here's another great blog written by a veterinarian about cricket keeping:
https://www.chameleonforums.com/blogs/ferretinmyshoes/734-crickets-101.html
Also be sure you understand about gutloading your crickets/dubia roaches. Here's a great blog about gutloading. Be sure you read up on it.
https://www.chameleonforums.com/blogs/sandrachameleon/75-feeder-nutrition-gutloading.html
Be sure to dust these insects properly aswell. Calcium w/NO D3 everyday, Herptivite Multivitamin the 1st & 3rd Sunday of the month, and Calcium w/D3 the 2nd & last sunday of the month. This makes it easy to remember Calcium w/d3 2x a month and Herptivite multivitamin 2x a month. When you dust them, just put allittle in a cup/bag and shake them up. you don't want your insects to be drenched in the supplements, just enough that they look "dusted".
lastly,
LIGHTING. your basking temps are a bit high, but veiled are required to have a high basking spot. Not sure on the age of your cham, but he should be fine at super low 90's. Also be sure the bulb is atleast 8-10 inches away from his basking perch. He may get burns And for UVB, you need a UVB light. UVB rays don't transfer through glass, so be sure to pick up a zoomed reptisun 5.0 UVB tube. Or you can get the 5.0 coil ones for now since you got the double dome emitters, i've heard they improved those compact bulbs allot.
If i missed anything, hopefully a member will chime in and help me out
-Gabe
