Start with a simple palm shape
Add a rough wrist shape
Sketch the thumb as a separate angled shape
Draw four finger guides from the top of the palm
Vary finger lengths slightly
Add knuckle positions on each finger
Connect the fingers with smooth curves
Refine the thumb joint and base
Shape the palm edges and heel of the hand
Add finger joints and nail areas
Erase extra guide lines
Clean up the outline
Add basic shading if needed