First, use the proper terminology. Autos go straight from seedling to flowering. They don't have a veg mode. Therefor it doesn't make much sense to describe an auto as X weeks into flowering. While describing autos we usually talk about number of days in dirt.
Your plant looks healthy. It's always a good sign when the larger fans are pointing up instead of down. You might keep an eye on your top cola to make sure it doesn't start to burn. Get as close to the bulb as you can without crispifying the top cola, eh?
Unfortunately, most autos show the same phenotype as yours. That means most untrimmed autos end up skinny with few side branches. I think that's the main reason autos are notorious for being low producers. There is a couple of things you could have done earlier that would have increased your yield. When the seedling was 8-10 inches I would have completely removed the top cola right above the second node. When you top a plant early it makes the plant grow more bushy with less height. Bushy is always good, especially growing a single plant.
Have you got a back-of-the-door type of mirror you could use? They are handy to lean against the wall and aim it so it reflects the bulb onto the side of the plant. More lumens = more bud.
A good transplanting schedule can help production too. I put seedlings into dirt in a 10 oz. solo cup until the s'ling is getting taller than the cup. Then I TP into 7 inch square berry pots that are about 3/4 gallon. At 12-14 inches they go into a finishing pot of 3 gallon size. By TP'ing early and often the plant will waste less time growing out more roots than it needs. Plants grow almost all roots until the rootball hits the inside of the pot. That is the signal for the plant to start growing more greenery and less roots. So by timing your TP'ing properly you give the plant a chance to get bigger before it finishes. Remember, autos run on an internal clock and are going to "flower/finish" according to their particular genetics. All we can really do is try to tweak the things we can to make it do what we want.
Good luck, BigSteve.