Step 1: With the lightest marker (25% Gray) apply first shade, leaving the shine white. Step 2: With the darker marker (75% Gray) apply second shade, leaving space for the lighter shade and white shine. Step 3: With the black marker apply final shade, leaving space for the first two shades, white shine and seam detail. Step 4: With a white Prismacolor pencil redraw the seams if they were covered by the markers.
Elaine Lim