In the first picture light is coming straight on filling the full face. the modal looks like he is giggling or he is just smiling real big. the background is some sort of wood or painting texture. the photo was taking straight on at a close distance. all of it together makes a very happy portrait, everything is very bright making a happy mood or setting.
Portraits.
in picture 1 of Ben the light is coming from the right side of the frame and only illuminating that side of his face. the photo consists of only his shoulders up in the center of the frame. The photo was takin below the model, at a close range and horizontal. Giving him a more of a dominate or a stronger look rather then taking the photo from above or straight on. picture 1 is is artificial light from a bulb making giving a process clean line across his face of light and dark. in picture 5 of Matt the light was natural, the light is very soft casting a shadow behind him. Also the picture is vertical instead of horizontal so there is a lot more of Matt's body in the picture.