From the pics here are my concerns with your enclosure:

1. If that were my enclosure I would be highly concerned that the snake could get burned from that light being inside the enclosure. If that is your only source of heat, then that light is on a good deal of the time, and they get HOT!! And snakes don't register contact with high heat like we do. If we feel something hot, we pull away quick, snakes won't. Hence the reason that heat rocks are so bad (for example).

2. Those stick on thermometers don't do anything but measure the temp of the glass. If you were to put a finger on the glass where that stick on thermometer is, it would affect the temperature reading. Plus you should measure your temps from ground level, where the BP spends most of its time.

3. Definitely give your BP 2 identical hides and at least cover up 3 sides of the tank. He is way too exposed in there with not enough cover. Those half logs aren't the best hides for your snake.

4. Ditto on starmom's post.

5. The tank seems too tall for a BP. They need more floor space as opposed to vertical room.

6. Definitely get a good hygrometer in there to measure your humidity.