Step-by-step: Ensure your arms and hands look correct
1 Start with the palm for the hand and then add fingers. Be careful where you depict the joints. Use the length as a starting point for the arm and add in some appropriate shapes to emulate the muscles. This is a crucial step, so take as much time as you need. 2 Establish a light source for your new shape. If you’re using a reference image then keep the direction of the light in mind while painting. This will help make your sketch look believable. Add shadows and highlights and be sure not to ignore the secondary reflected lights. 3 Your form is now ready for some details. You can further define the shapes at this point and add any finishing touches. Remember that you can always go back and adjust the arm’s proportions or the light source if something doesn’t look quite right.