The setup looks fine. It is almost identical to my original enclosures (many years ago).
6 weeks of non-eating is trivial for a male ball python that size. I wouldn't even make a note for at least 3 months. Then I wouldn't worry until about 6 months had past.
If your concern is that you are wasting f/t trying to get him to eat: I would cut off part of the tail a feeder and thaw out and see if he is interested in the scent before I risked thawing an entire rodent. I would only attempt feeding once every two weeks (to generate more interest).
I also wouldn't handle/bother him until he feels secure and resumes a regular eating schedule.
Good luck!
Oh, and cute dog btw![]()