STEP 1: Draw a grid on your image that is at least 20 x 20 SQUARES These should be even squares. I will help you if you need it!
STEP 2: Draw the same (but larger) grid on your cardboard, fill the entire board.
STEP 3: Mix at least 8 different values of paint to create an evenly spaced value scale from white to black.
Step 4: Using your value scale to compare the values in the grid on your image, fill in the squares on your cardboard. You may use more than one color in a square if it is an area with lots of detail.