I played around with her facial features a bit, so that she looks less like a pony but still pony-like enough to fit into the world and resemble a hippocampus.
I also added some textured patterning to her back and lightening the underside of her body to mimic the 'darker on top, lighter on the belly' that you can see on a lot of sea creatures.
My brain refuses to form coherent sentences today, so this character description is a tad shorter than the others.
Anyway, i like her design. Gonna do Queen Novo, too.