Overall

Vision Vision

Originality Originality

Technique Technique

Impact Impact

As long as i can see, it's quite nice; most of the proportions are accurate, only the nose looks weird. The colors you have used are quite appealing to the eyes and matches with the tone of the background. It has that calming smooth vibe to it, heh. Overall its very good, the use of colors, those slight highlights on the cheekbone... yea that is awesome.However i do have some things i think you should probably need to consider though.One of them is probably to squeeze in more of the little details as much as you can(like the thing you did on the cheek bones), for example.. (the lines look a bit wobbly around the skin) i think if you could have made the outer lines on the face and also some of the edges on the clothes a bit more sharper and smoother it would look more attractive and would put a direct emphasis on the character you are trying to portray when someone looks at it. You could probably also look at the hair... give it little strands or two to have that natural flow to it. Most importantly the lighting, look at light and dark places, i'm talking about the shadows around the neck for example or below the necklace, the face bright in light and background being a bit darker. Its these little details that you have to look at more and add on to it.... other than that, you're all A-OK. Color picker is a really handy tool, look at other people's work and copy some of their skin tones maybe that helps too.That's all i have.I'm so sorry for the long paragraph OMG i didn't even realize it. And sorry if i have been harsh at you in any way. i am just being honest.