She comes from a world called "Horaterre", she is the Nature Spirit, guardian of the plant and animal world. You can meet her with her friends (a magus, an orc, a fairy and sometimes a shy little elf) at some european medieval-fantasy festivals.
To create this picture, I painted some elements, used photos of my own and found some great stock here on deviantART. So thanks to ~frozenstocks
, ~CloudNineStock [link]