So you want to move the uvb to the middle of the cage and make sure there is a basking branch 9 inches below the fixture. Keep an eye on it because Veileds will eat their plants. Plastic plants can be dangerous for them because of this. Same with the moss vines.
But your off to a great start.

Here is a great site to learn accurate information
https://chameleonacademy.com/ There is a whole section on cage set up too.