I should also say that the whole coop can look like someone had a pillow fight in there, and sometimes the poor chickens can look REALLY REALLY horrible while molting. Growing feathers takes protein and you can give her a boost by giving her scrambled eggs or a little tuna a few times a week...
Those things on the top of her head look like new pin feathers. You'll probably see some little whitish things that fall off when the feather starts to open. @DobieLover gave you good advice about feeding her good quality food. She will look beautiful soon and she'll feel so much better! I have...