Just gonna go out on a limb here, but you will have herms soon. Although the moon puts out light, it is nothing compared to the sun. The difference in ratio is tremendous! If you can see the light leaking, it's too much! Much more than the moon compared to the sun. Good luck. Hate to see someone put in the time it takes and have light leaks. It's not a question of if, it's when they will herm. I believe that it would happen even if you didn't leave the door open, from what you are saying about the leaks.
Good luck.