How the unique caricatures
I draw caricatures from photos - preferably a close-up pictures of what your eyes stand out well. Passport Photo is not the best choice. For details, it is good to get information about the person's hobbies or work, and other important elements that you want in caricature.
Between steps 1 and 3 there will bet often for hours sketching and drawing. Caricature is a delicate art, since the image must be identified - and not the identical (there is cameras for it). Give a caricature to retiring gift, or it could be a great to bride and groom! Real piece of art.