Hey Elisabth this is a great start! REally good job with the shapes! What I observed is that your values on the fingers are a little dark as well as the shadow in the cuff, and the Mass shadow is is bit dark. Its great to see you did your best to capture the fill light! Other than that fabulous job, Just work on your edges it'll help with capturing the likeness of the painting.
I Agree with the balance and focal points, I can see that the Face, hands,and Paint palett and cloth are Primary, Secondary, and tertiary emphasis. I noticed the leaves help pull the viewers eyes down in a S curve Moving through her head down to the white cloth! Again Fabulous work Keep it up