Finn the Human and Jake the Dog from Adventure Time HD Wallpaper

The left side of the image shows a simplified face of Finn the Human, with a light pink oval head, two black dots for eyes, and a curved black line for a smile. The right side features a close-up of Jake the Dog's face, with large, round white eyes outlined in black, and his yellow snout and nose. The background is split, with white on the left and bright yellow on the right.