Very good for a first try! and I agree, #3 is the best, but the foot is distracting, but could probably be cloned out.
I also agree you've got a good blur on the background, but they are not the best for your model, and you need to move around her more and see what else you can put behind her so it doesn't compete.
Your exposure is really nice, very well done. Also may want to watch where her eyes end up, you want to try and have a least a little bit of white on either side of the iris, to start with, (another 'rule' that can be broken later as you get more proficient).
Another thing to think about is a reflector, or using onboard flash dialed way down to creat 'catch lights' in her eyes. (I know the pros hate onboard flash, but for starting out and learning about flash, it is a way to put that sparkle in the eye, when used in a very low key fashion).
Lovely model, and really good for a first try, and go out and shoot more!!!
Godox/Flashpoint r2 system, plus some canon stuff.