The top pictures of her standing make it hard to tell about her coat...
The one where she's sitting is more indicative.
She's got a decent coat, and I'd say, luckily, the best in the litter that I've seen. She is well wrapped, and some undercoat coming in. She's not dripping, nor did I expect her to be. Just a very nice wrap (actually if you look at the standing shots, the white spot where the sun is reflecting is a kink...she's a kinky girl)
Marshall (the black boy who lives with Ruby's littermate) has a long coat, so it looks like there's more, but its not as tight as Gin's.
Ruby had a phenomenal puppy coat, and then nothing as an adult, though she does have a true double coat, and its very harsh to the touch, there's not an abundance of it...especially right now, I think she's got 12 hairs total on her LOL