Fairy Tale Rejects Concept Art: Mermaid Head Fins

After The-Greys checked out my fanart for her comic and complimented on how I drew the mermaid, I asked her if she wanted me to do some concept art on her world's mermaids for inspiration. So I came up with three concept drawings for fins. One for fins on the head and upper body, one for caudal fins, and one for fins on the tail. So here's the first set of fin drawings.