Puppy Kai by Steven Trainoff Ph.D. Via Flickr: I feel like I need to improve my portraiture skills so I practiced on our new puppy. He has all of the attributes of a professional model. He doesn’t sit still. He throws temper tantrums, and is incredibly cute. I used the BWD (big wall diffuser) method of lighting. I.e. bounce flash against a white wall and ceiling to the upper right. Kai is about 3 months old and is quite a handful.