At Tideborns you will find many camp chair of 60 minutes that bring amazing mermaid sets (3 or 4 models) in all colors to choose from. Just sit on the chair, click on the poster with the prize pic, a menu will appear so you can choose which color/model do you want. At the end click on CAMP and finish. I chose this model in green, I'm thinking about going there again and camp for the purple or blue version, hehe.
Vice released a pose pack called "Animated Mer", here only the first picture is from this pack (the others are from my AO). Animated Mer are dramatic poses with motion in the tail, they are excelent for artistic photos. It's better you go to the store and try the animations on the stand ;)
Pose: VICE "Animated Mer"
Mermaid Set - Tideborns - FREE - camp chair 60 min.
Skin - ( r )M ~ (Skin) Dead ~ No.09~(1)FROST