IMO, that's a hen as well. 27 weeks puts this birds at.....a little more than 6 months, right? Anyway, at that age my Silkie boy was obviously a boy. His comb was much bigger, and he's a bearded- which are normally harder to tell on bc their combs and wattles don't get as big as non-bearded (non-bearded hens are supposed to have more obvious facial features). I also don't see any obvious streamers coming off her crest. It does have the darker buff on its wings, but not in the other places you'd see it on a male (hackles and saddles). I have 2 blue cream hens (buff diluted with lavender), and one of them is a light buff. The other is pretty dark and has the more reddish spots on her like your birds. I vote GIRL, and if she squats just about everytime you're near, you can probably expect a cute little egg soon 
Nikki

Nikki