First off, the faeries. In November last year I started making some Faerie Wings (pattern by Stephanie Dosen of Tiny Owl Knits). I got distracted by other projects and ended up not finishing them until last week.
As to the mermaids, on Tuesday I finished making the Corbusier Socks by Sarah Jordan. Although the designer was inspired by architecture when she designed these socks, in the teal yarn I used the stitch pattern reminds me of mermaid scales.
Another view of the heel: