Start with simple shapes for the shoulder, upper arm, forearm, and hand
Mark the shoulder joint and elbow joint first
Draw the upper arm as a tapered cylinder
Draw the forearm as another tapered cylinder
Keep the forearm slightly narrower near the wrist
Add the hand as a basic block or mitten shape
Use light guidelines to set the arm’s pose and direction
Check the length relationship between upper arm and forearm
Connect the shapes smoothly at the elbow and shoulder
Add muscle forms if needed, such as biceps, triceps, and forearm masses
Refine the outline with cleaner curves and angles
Draw the wrist smaller than the forearm
Add fingers and thumb from simple shapes
Adjust the silhouette to show the arm’s position and gesture
Erase construction lines after the final shape is set