Tekeli-li! dark artistry 's Deep Ones are a line of "realistic" merfolk- ie, based on real species of fish. Great care has been taken to interpret the traits of the real fish if hybrid with a human, and the AO is designed to create an appearance of naturalistic motion. They were inspired by the artist's lifelong love of aquatic creatures, and loving attention has been paid to detail, with an aim of exceptional quality.
The newest Deep Ones are based on the Betta Splendens, commonly known as the Siamese Fighting Fish, and specifically, the Plakat, or short-finned Betta, the naturally occuring variety. They currently come in 3 striking, jewel-like colors, with both male and female varieties of each color. These are complete AVs, containing everything pictured- skin, shape, AO, eyes, prim body attachments (with 2 sorts of fins, whole and ragged), accessories (jewelry pieces and a polearm), optional modesty shirts for the girls, and a cute little wearable betta pet. The shape is not required, you can wear your own, and all prim parts are moddable to fit ideally to your own AV, and copyable for backups.
More info and images available inworld-
Main Store - Tekeli-li! in the Hollow Earth -
http://slurl.com/secondlife/Hollow%20Earth/68/194/41
Tekeli-li! in Asunder-
http://slurl.com/secondlife/Asunder/112/136/39
Tekeli-li! & The Ordovician Reef -
http://slurl.com/secondlife/Tokebi/43/149/21
Available online at-
ShopOnRez- http://shop.onrez.com/Tekelili_Tantalus
SLExchange- http://slexchange.com/modules.php?name=Marketplace&MerchantID=57426