Half logs are not very good for snakes but they can be used. Its good how you have it pressed against the wall but you could make it better by stuffing the front opening with moss so the snake feels secure inside by getting rid of the large opening.

Like SRMD94 said your snake could pick a favorite hide because one feels more secure than the other. This may not be the best if your snake decides to stay in the chosen hide instead of thermo regulating as it should.

If your using a moist substrate the condensation inside the hide should reduce as the substrate starts to dry out.