New iguana. need advice.

ok so i ordered a red iguana baby and have been planning on getting one for ages. i just wanna show you the cage setup i have and ask for advice. he was going to be my first iguana but then i ran into an issue. a friend rescued an iguana and brought her to me yesterday because he cant take care of her.....so now i have a baby coming in tomorrow and a foot and a half not including tail rescue. the rescue is mean so i am just leaving her alone and letting her adjust to a new place. but i am just learning iguanas so two makes things a little more difficult.

so please any advice you can give me would be very helpful. the older female went to the vet today. they said she is skinny but in relevantly good health and they said the cage that she came with is actually perfectly fine for her size so i got lucky there.

anyway the cage i set up for Lava which is the name of the baby i ordered. is homemade. i made it a while ago for a chameleon that i dont have anymore. it is a 2 and a half by 2 and a half foot by 4 and a half feet tall. it was a screen cage but i put plexiglass over to screen because i was having a hard time getting the humidity up.

the one pic is of the top part of the cage with the lights and a basking platform.

another is the whole cage.
the the other 2 are bubbles. the rescue

The best info can be found here: http://www.greenigsociety.org/careinfo.htm