Thanks for posting pics of your setup. I plan start my first 5-6 gallon batch in the next week, so I will be following your progress. Good luck!
One observation/comment. Considering your head space, have you considered putting a blowoff tube on your vapor lock, in case things really get active? Looks like you have a concrete floor, so a mess won't be a big deal. My first attempt was with 1 gallon jugs, with only slightly less head space than you have, and both got active enough to froth out of the vapor locks and make a sticky mess on the jugs and table. (With my limited experience, I don't know if that is normal or not, but one of my yeasts was S-04. YMMV.)