This is actually pretty beautiful with a nice concept. I like the colors you used, and the flowers are pretty cool. The hair is probably the best part, with the rich tones and various hues of color. However, the eyes need some work. Make the girl have upper eyelashes (or make them better known), and let her have pupils. Make the eyes more blue. Her shirt also looks really weird. I do like the cheeks and I LOVE the lips! I also like how you tried painting!
Overall, you did a pretty good job. Keep it up!
Hope I helped!