Seapony Princess Skystar from MLP the movie from screencaps.

Recomended positive tags:
+ Character: Princess Skystar, Skystar, my little pony, seapony
+ Hair: light arctic blue hair, glowing hair
+ Skin: yellow skin
+ Tail: mermaid, mermaid tail, yellow mermaid tail, light arctic blue mermaid fluke
+ Eyes: brilliant cyan eyes
+ Fins: light arctic blue fins
+ Ears: head fins
+ Wings: fin wings. fairy wings, pink wings

Recomended negative tags:
- Pony ears, legs, thigh gap, merge, merging, merged, merging hands, merged hands, purple theme, ears, scales, bad hands, bad fingers