This guy was  a drummer from Brazil, about six and a half feet tall.  I had more fun drawing his hair than anything.

Notice the squared-off fingers in the caricature.  If you’re going to draw foreshortened fingers (and toes, too), it’s easier if you’re able to just make them rectangles.  Common wisdom is to draw them as cylinders, but I find it easier to imagine them as blocky shapes, connected like a jacob’s ladder:

If you’re drawing hands from the side, it’s easier to think of them as scoops.  From the palm front, a square sunrise.  But for foreshortening, which is the hardest angle from which to draw four fingers and a thumb, breaking it up into little rectangles is the way to go.