very nice anything, though I think I prefer the blinding palette more personally. Ignore malor's edit, its pretty atrocious, though his basic idea has some merit. The weakest part of the piece I think is the dithering across the hair and the shirt. Its very well done but with this limited palette I think you will be able to present more information by working with solid shapes - e.g. in the hair, you could actually pixel in strokes for the hair, rather than a bunch of dots. That will tell us more about the form and match the silhouette better stylistically.
EDIT - realized i spelled "blinding" "bling", which is preposterous. Also, malor, i mean you no personal insult, but you went against your own advice! you said the dithering really doesn't work, and then dithered all over the face. your piece has problems according to your own critique, not mine. But the changes you made to her eyes and facial structure basically make her look like a drunken ex-con or something. you had the right idea, just perhaps lost some focus once you started doodling!