Beautiful little guy !!!
Everyone already gave you GREAT advice !! Esp. about the heat and lamps.
You should also cover the sides, back, and most of the top of the tank. No matter the size of the tank. The little one is very "exposed" and that can cause stress. Right now he only has a hide on the warm side, so he has to choose safety or Thermoregulation.
Get some black paper (or any color, but darker the better) and tape it on the sides and back of the tank. Then cover most of the top of the tank. You should only have one lamp dome up there...you can cover the rest of the top with silver foil. Will also help with humidity.
It will turn the tank into more of a "cave" feeling for the little one and he won't be so exposed.
He is really pretty !!