the female one looks like it has a huge hat on. Like a victorian bonnet type hat.
And that's definitely long hair. I hope the lantern pose is either a hand held or the arm mod has a lantern-less option.
As for the male one, it just looks really good from the silhouette. He looks like some kind of writer, perhaps, or a treasure hunter, with a map? Some kind of rolled up paper/parchment.
The paw certainly does look like it has a fish tail, doesn't it? some kind of cape. I suppose it could be a selkie, perhaps? seal skin cape and all that.
some kind of adventuring party, maybe the guy is following his map and finds a mermaid's treasure. The lady is either on the adventure with him, or maybe she's a ghost/being/guide of some kind, with the lantern.
Hah! I don't know. *throws up hands* The male one looks good, so I'm ready for them to open already.