Love the name too, featherz.
Bruisie might have what's called "gypsy face"- dark pigmentation around the face and sometimes upper neck with rest of body a normal color. Some breeds are supposed to have this, such as sumatras, not so rare on birchen modern games. But, this is also usually found on dark colored birds- blacks or birchens... trying to remember if I've seen gypsy face on another color like your hen.
Look at underside of her wing and also the vent.. have bit of suspicion that she may have fibromelanotic, what makes the dark skin on silkies. Fibro gets a little weird sometimes, I've had some where the only evidence of it was on their skeleton or innards- why I mentioned the vent, if the inside looks gray or dark, that's another possible hint of it. I had a NN chick with very transparent and normal skin but it was easy to see his neck bones and skull were black. Skin on inside of the wing can be thin on some birds, if her bones are black, it would make the wing skin seem darker.