Okay. I went to bed, but woke up really early. >_<

I did an edit for you, and created a 2-frame animated gif showing the original image and the edit. That way you can zoom in and see what changes I made.
I tried to change as little of the original lineart as possible, but her mouth was way too far down. She almost didn't have a chin. I made a new palette, which ended up looking a lot like all of my standard pink and purple ones. Eh. Those colors just work really well. In the end, I dropped the 14 color original palette down to 12. In really small pieces like these, every pixel makes a huge impact on the picture. If one pixel is out of place, that can make difference between having a nostril, and not having one at all.
Oh. And remember, these forums have a built in image-zoom feature. (Click on the pictures to zoom in.) You don't need to post the images at 2x size.
There are still some spots that aren't right on mine. I hope that you can pin-point them ('cause then you'll be able to spot them in your later pieces.)