Beautiful plants, OP! I'm doing my first grow now and it's an indoor auto in a Solo cup. Using a whopping 84 watts of CFL light + 20 watts of LED to illuminate the side branches. No chemical fertilizers, no grow box or bucket...just a plant in a cup in a closet with some lights & a fan, lol. She's at Week 5 now & sporting some nifty pistils. Starting to REEK too.
(Check out Spongebob in the background taking a whiff, haha. Didn't notice that until I uploaded).
Growing one plant at a time is where it's at if you're cheap/poor, have no space or need to be stealthy. And autos can be as big or small as the container you put them in for the most part. Mine's been on a 20/4 light cycle but is now on 18/6 in flower to help save on the light bill a bit. She seems to enjoy the darkness even though autos don't "need" a dark period. Always looks taller & perkier after lights have been out.
Anyhoo, just dropped by to say autos rulllllle!