Hullo! I play a Thorn Dryad, and braid/floral tape silk flowers into my hair, use eyeliner pencils to paint vines on my face, and henna on my hands. My clothing tends to be flowy, but nothing specifically "Dryad".
As for Barkskin - There's a player in Oregon that payed a Barkskin, and they would use the real tree camo under armor for skin, and paint simple pine branches on their face. There's a lot you can do with silks these days too - a lot of good willow, apple, cherry branches out - or holly and pine in the winter.