Great looking snake!

A few tips: Ditch the lamps unless you need ambient boosts! They suck humidity right out and are needless most of the time. A good UTH or heat tape and thermostat are the way to heat a snake tank.

Cover the back and both sides with opaque material - aquarium background, scrapbook paper, cardboard, etc. And add insulation of some type from felt to cork board to foam board. That will help temps and the security of the snake. Also for security, add some greenery to make it seem more 'full'. BPs don't like open space much.

If you can, get two identical hides. Otherwise the snake has to choose comfort OR security.

Here's a few pics of 10g BP tanks I've had/still have to show what you can do with so little space: