Jennifer Miller used several Photoshop tools to modify a CPR dummy image for a class project. She enlarged the image, auto-toned it for better quality, and added eyes, a mouth, and hair to the dummy using the paintbrush tool. Miller also used the liquify tool to make the dummy thicker and the mixer brush tool to draw abdominal muscles. Finally, she used the pencil tool to add a cross tattoo and practiced undoing and redoing changes to refine the image.