lots of foliage sheffiera is a good start for youngenz also a pothos would be a good addition small ficus is another i have thats great but good start nice
i agree with others get a big foliage plant like a 1-2' ficus to start
the more desirable it is for him, the less he will wander away from it
and make sure he can't climb onto the light. they will NOT be able to tell that they are burning themselves until it is too late and will foolishly climb right onto the hot domes if given access
EDIT: I only see 1 light? do you have UVB and heat?
More foliage is needed. Ficus are great so are pothos both are extremely popular. Pothos good for cover ficus good for climbing and hiding. I can see u have both lights heat ane uvb as long as there outta reach. Make sure u put up something so if he hits the table top he doesn't bolt at the speed of.... Molasses.. torwards the edge or somewhere hell get lost. But good start I like the free ranges . Just gotta be very cautious. And feeding Is difficult in free range with out hand feeding or cup feeding. How do u manage so far?