I've always been fascinated with mermaids, and so they're one of my favorites to draw (next to elves and centaurs)..
The mermaids here are based on real fish (I don't know if you'll see the likeness especially on the green one). I've noticed that most illustrations of mermaids didn't have any way for them to breathe under water (which is weird since they're supposed t live there) so I added gills at the side of their faces (hope it doesn't look too odd!>.<) I wanted their skin to look waterproof-like but I didn't seem to have achieved it...
Anyway, the style I used here is actually an experiment. I haven't used them (the media) all in one art before so I was very nervous applying the paint for the splash (I used white acrylic paint while the sea is oil pastel). Unlike in photoshop, traditional media don't have ctrl+z. I'm so happy it turned out well!!!^^
I was reluctant to do the blue one blue since the sea and the sky is already blue.. Hope my decision was right..
Hope to know what you think!!^^
I didn't use any reference for the faces, but somehow I think the orange mermaid looks kinda like a famous someone... (clue: an international popstar)
...but maybe it's just me...