Benjamin AE Filby gets some great sketch suggestions:
The brush Slick Sable by Frenden gave some great results noodling with those textures and organic forms.
I wanted to expand the head sketch to a full figure and started by roughing out the layout, then blocking in the basic shapes and shading. I went straight to work on the details of the foliage, copying and pasting as much as possible, creating random in-betweens to avoid repetition.
I didn’t really achieve what I wanted from the drawing, the figure is static and the anatomy is lost in the details of the fungus, branches and greenery.
I roughed out a second layout that feels right for the character and there’s also ample space to include the background of the swamp itself.