For my character concept, I drew inspiration from Bulgarian mythology and researched the Samodiva (they are close to forest ghosts, forest nymphs, dryads, and villi). Samodivas are often associated with Enyovden (Saint John's Eve) thus the flower crown. To make it more distinct I wanted to incorporate Bulgarian folklore clothing in the design so I explored some variants here.
Not sure yet if I should go in the more ghostly direction o if she should be more like a dryad but there is still time to decide : )