Hand signals especially if they are abbreviated luring gestures are fine and easily faded out by abbreviating them more and more and are fine.
She's showing great excitement and engagement. The barking might be because there's an element if frustration that you are slow on prompting. Some drivey dogs get frustrated at slow prompting. A few times you just sorta stand there between commands and rewards and she was like what the ****? Do something so I can work!
A few of those barks might have been superstitions she learned. If you took too long to click a sit and she got frustrated and barked and you clicked as she barked you just rewarded a sit and bark and she learns oh I better do both just to be sure I get my reward.
You have a great pup there though. She's a smart drivey little one.