Draw the eyes for Stimpy, and the mask around the eyes. You will draw the other bulging eye for Ren, and then add the pupils. Once that is all taken care of, you will draw the great big smile on Stimpy's face which also has his tongue sticking out and hanging there like a dog. Finish off his nose, and add the two uneven nostril holes. As for Ren, all you have to do is draw the mouth, forehead wrinkles, and bags under the eyes. Lastly, draw the front of his chest, and one leg line.