Looking pretty nice!
I would note that it is generally not a good idea to enclose electronic devices in the battery box. I can't see for sure but your batteries look to be sealed type which may not be a problem having electronics in with them.
Does that fan push air in or pull it out?
I suspect you are hooked now and there is no known cure.
Tom
"Education consists mainly of what we have unlearned."--Mark Twain
