Step 11: Darken in Finn's legs by thickening the initial guidelines. At the bottom of his legs, draw a thick curved line for his socks. Below the socks, use the ovals as guides and draw his shoes.
Step 12: That's it! You now have a nice sketch of Finn from Adventure Time. You can stop at this quick drawing for a rough, sketchy look or go for a more finished look by continuing to the step below.
Step 13: For a more finished, inked look, carefully draw over the final sketch lines with a pen or marker. Wait for the ink to dry, and then get rid of every pencil mark with an eraser. You now have a finished inked drawing of Finn! You can stop here or go to the final step to complete your Finn drawing.
Final Step: For a completely finished Finn drawing, you have to color it. You can use markers, color pencils or even crayons! Color Finn's skin a peach or light pink color. His backpack is two shades of green, light on top and dark at the bottom. Same with his clothes; his shirt is light blue, and his pants are dark blue. Finn's shoes are black, and don't color his hat or socks. That's it! You now have a completed drawing of Finn, the human boy from Adventure Time.