Heya! You gave me some pretty awesome feedback on my creature so I wanted to pay it forward.
I did a quick over paint of your latest iteration of the Dryad!
I absolutely love the design of this creature, very well done. I would say focus a little more on your composition, my eye gets a little lost looking around at all the work you've done to make the background stand out.
I added in some darker lighting at the bottom of the picture and in the background. Also I've highlighted some of the dryad's features so the Dryad pokes out a little more.
Definitely focus on your lighting and color usage, skin/flesh likes to take on some of the color of it's environment. I would want to bring the attention to the creature and not so much the background since the piece is focused on the dryad.
Very nice work!