WOW! What an amazing artwork! You should be proud of your work as it's stunning. I think we sometimes put too much expectation on ourselves but it's not needed. Your work is great and this is what counts. You'll get where you want to be, I'm sure about that.
This drawing is better than a photograph. The water looks real and the splash on her face is spot on.
Her skin tone is perfect and I love the tiny details such as pores that you included.
I don't think anything what could be improved on this one :)
Thank you for sharing and have a great weekend!