Howdy,
I'll try to summarize a few of the posts from different threads regarding your veiled...
From the photos, he looks to be in decent shape

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Switch-out the red heat lamp for a simple 75W white flood lamp. Fancy isn't necessary. A $4 one from Lowe's or Home Depot etc. is fine. Mentally, he will benefit from bright white light along with his UVB light source. Run the lights for around 10-12 hours (not longer.) Use a timer and have them come on around sunrise. His basking spot should produce a skin temperature of around 90-100F.
Is that 18" UVB tube in a reflector fixture? If not, you could improve things by adding a reflector to it to direct more of the UVB towards the enclosure. (Do I recall correctly that it is a Reptisun 5.0?)
Your enclosure looks like it has a decent amount of plant cover. Can you raise the enclosure so that the top is taller than you? Chameleons benefit from be positioned high enough to look down at their keepers. It gives them less of a feeling of being the prey ready to be eaten

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I couldn't see any, but if you have any substrate (bark etc.) on the bottom, go ahead and remove it. See if you can figure out a way to setup drainage underneath the enclosure (Rubbermaid box???) so that you can easily let the misting water drain out of the enclosure for proper disposal. It looks like you have a nice pump-up mist bottle so keep up the long, warm misting sessions. Try one between 7am and noon aiming for 8am and another somewhere between noon and 4pm with 2pm being a good time. Keep them 4-6 hours apart. 10-15 minutes long would be good.
Gotta dash for now!