Start with a simple palm shape
Add five guide lines for the fingers
Sketch the thumb separately from the palm
Block in each finger with basic shapes
Keep finger lengths and widths varied
Mark the knuckles across the hand
Connect the finger shapes smoothly
Add the joints in each finger
Refine the wrist connection
Adjust the hand pose and proportions
Outline the final hand shape
Erase the construction lines
Add creases and folds
Shade to show form and depth