(Bioshock Sprites) Hurry Mr. B, the Angels are waiting!

[Chutzpar]

You can try putting purply bags under her eyes, since the yellow isn't standing out. Purple contrasts pretty well with yellow and should also stand out a bit against the greenish colour you're using for the skin. Since yellow and green are pretty close together on the colour wheel, having green and yellow next to each other with little tonal difference isn't gonna read very well.