This piece has a lot of potential! Nice proportions, good structure and appropriately soft and hard shadow edges! I think I would change the shape of the iris of the closest eye. The ellipse should be perpendicular to the direction she´s looking. Stan talks about it in this video at 05:15 ( https://www.proko.com/course-lesson/how-to-draw-eyes-anatomy-and-structure/discussions ) But overall, great start! Hope this helps ;)