Yes, she looks a lot younger than 24!!!
Nice riding! :)
The two main things that I noticed was that your heels should be down a little more. This will help you with balance. I good way to get your heels in the right position is to go into 2 point (half seat) position and when you sit, keep that same stretch in your heel. The other thing is that you should try to keep your head up more.
Other then that, you are very good for only your 5th lesson!