Probes for the heat/humidity sensor should sit lower to the ground, to monitor the level the snake will be sitting at. Consider hot gluing them to the glass if the snake ends up pulling off the suction cups regularly.
Agreeing with KMG otherwise. Darker/thicker hides. Clutter, such as fake plants, substrate, moss, pvc tubing; preferably a bit of dabbling in all of them to see which your BP ends up preferring for their living situation.