Let’s start with the enclosure.
The kit comes with a 30x16x16 inch screen cage. This is too small for an adult veiled chameleon to be comfortable in long term. In general, a 48x24x24 inch cage is recommended. This is a minimum that allows you to create the gradients necessary for your chameleons environment.
This should be considered a minimum. A 48x24x48 will allow your chameleon more room to move about the cage and find the exposure, temperature, UVB, and humidity that it requires at any point during the day.
The screen enclosure may work well for creating humidity and heat gradients you need if you are in a Geographical area that has similar conditions to what your cham needs. If you’re in an area that is relatively dry you may need to consider covering 3 sides of the screen to help retain humidity. This imitates what’s known as a hybrid cage. There’s lots of ways you can find to do this. Duck window kits are fairly simple solution for your current cage. If you need a hybrid cage to assist in maintaining your environment, you can purchase your bigger cage with 3 solid sides. If you run heat all winter or AC all summer most likely you’ll benefit from a hybrid cage
While we’re on the enclosure, let’s consider exposure gradients.
the goal is to create open areas and hidden areas using branches, vines, and plants to allow your cham to adjust its conditions as it needs.
you need open areas with branches/vines near the top So cham has access to UVB and heat and just as importantly you need areas they can retreat to, to be totally hidden.
You’ve added lots of plastic plants to help create this security which is great, unfortunately, veiled chameleons are notorious for sampling (or sometimes devouring) their plants. Obviously, eating plastic plants is very dangerous to their health. Switching to all live plants is highly recommended for all Chams because they create security, maintain humidity, release oxygen and CO2 helping to regulate your Chams normal diurnal patterns, and look beautiful, but it’s crucial for veiled because they can become sick or die from eating plastic plants. You can put the plastic on the outside of the enclosure to further increase security for your chameleon
Places to look at new cages.
dragonstrand.com. I have one and I love it, there are options for screen and hybrid enclosures, they come with drainage trays which will make dealing with all the water in the cage much easier
zenhabitats.com. Another hybrid enclosure source they look very nice too
diycages.com. Less expensive screen enclosures from a hobbyist owned company
zoomed also makes 48x24x24 screen cage