I was going to paint a critter from scratch over top of this, but I decided to just stick an octopus in there. Because I can. This is my first photo manipulation and I painted over a bunch of it.
Pictures of the forest are from my personal collection, taken in a variety of places both in the Cascade foothills of Washington State, and the forested area behind my house. The fish is from a photo I took at the aquarium, and the octopus is from here: [link]