She's looking great! Well done! There are a couple of things I would suggest:
1) a little more clean up around the main stalk.
I'd remove the little stuff from the branches, the stuff that is near the main stalk.
Those tiny branches that would yield only popcorn.
2) Remove the strings.
I see several places where the plant is growing around the tie.
When you start to flower. She will have a big growth spurt.
You'll want that growth to go towards the flowers, not the branches or stalk.
In my experience, if you leave her tied down, during the flower stage. She will spend more energy on the branches and stalk, rather than the flower.
My diary has a good comparison to show what I am talking about.
The Cheese was untied, and has grown large flowers.
The White Widow Max was left tied down during the flower stage, and grew a very large stalk. While having only small flowers.
So again, I'd say cut her loose for the flower stage.
Otherwise - you've done very well !!!