I mean yeah I think it's as easy as that, the base of the plants look like they got a nice big stem but then you top two or three times creating loads of smaller branches on a small area and then flower and then they have to compete in that area, I just don't think you can expect them all to turn into fat colas like that. The tops need to be more defined and have more space to get light and expand into.
If you do what you do you gotta spread them out more give each branch a bit of space and veg them a bit longer so they have the chance to turn into big buds. But that means less plants as otherwise they don't have the space.
It's about putting the right plant shape into flower at the right time and controlling the stretch so the tops keep getting ample light & energy from all sides otherwise it goes all over the place.
I think my best attempt at following my own advice was this one, that was no top as the main is clearly still the main just guiding out between two nets. And that was with the cheapest SP150 from Mars and a very cheap blurple
And I should do it like that again as lately I've been growing taller unscrogged plants and my bud size shape and thickness is all over the place.
But in the end it will be quite similar now you got a tent full of buds as well and like Coneal says they're looking pretty tasty, Super Lemon mmmm you can distribute the buds differently by selecting and shaping but you can't magically grow a lot more weed than the energy you're putting into it. You might get closer to maximum potential for the efficiency but that might be similar or maybe a few grams more as you're already getting loads of buds in there.