Beautiful piece of work, I think it's lovely in color and design. I also like the Little Red Riding Hood feel of it- enchanting~
Long ago, an evil demon was sealed inside a tree. This tree was so deep in the dark woods, nobody feared to ever come upon him again. Hundreds of years later, a village girl came across the heart of that forest. She had been sent to another town, but the quickest way to get there was through the woods.
The Demon saw this girl, and took the opportunity to seduce her. Was it possible that the innocent femme could free him? He beckoned her closer, ready to find out.
The ending would be either: In her trance-like state, she placed a gentle kiss upon the Demon's lips. Thus, she freed his spirit from the tree, and...?
or: Although he received a warm kiss from the girl, nothing happened. If he couldn't be free, who was he to deny the pleasure of some company? Using what powers he had saved over the years, her body transformed into another tree. And...?
I suppose it should be something like 'and they lived Happily Ever After'. But, that doesn't suit the picture, nor the tale.