My artwork!!

I still learn of 3 subjects are digital photography,mass comm,and history and critical studies for this semester.My subjects will complete of this august.Next semester i don't know what is new the subjects.My lecturer is Maizul(history and critical studies).He wants me to draw and paint exactly by Georgia O'Keeffe's artwork.This is for case study. You all can find out more details here (http://www.globalgallery.com/enlarge/028-39190/). My painted was produce,see the below ,

This is mine

This is Georgia O Keeffe's artwork