I've now tried most of the samples I ordered from GPC of the Anniversary inks. I haven't made up my mind about Regency Blue or 1864 Blue Black (maybe in a broader nib for those). Blue Velvet has a reddish sheen, but only on really good paper like Rhodia; it's nice, but also similar to a lot of other blue inks I've seen. And have.
But Terra Cotta.... Oh MY! It's one of those colors I didn't expect to like but just sort of makes me all melty inside. That one is a keeper for sure. I definitely need a full bottle....
Still have to try Silver Fox, but I'm expecting to like it (I tend to like grey inks).
Ruth Morrisson aka inkstainedruth