I recently bought a new 36×36″ softbox with a speed light adapter, and decided to test it out with my “model”.  I setup the softbox about 45 degrees above and to the side of my model, using just 1 speed light triggered by popup flash, for this test.  If it was an actual shoot, I would probably add a reflector or a fill light on camera left.  However, I wanted to see how well the box works as far as softening the shadows.  I’m satisfied with the result.

Yes I know, he needs a hair cut.  =)