Types of Portraits

I like this photo because this guy if amazing. He has checkered underwear, and wears it with pride.

 I like this photo because the light on her face makes here appear very clean.

I like this picture because this guy looks really funny, and seems really serious about pointing at the camera.

1. An environmental photo has some sort of life from above shinning on the subject.
2. Environmental has a background of some sort, while casual portraits are more like stock photos with white backgrounds.
3. Most self portraits are black and white.
4. I will want to shoot in the courtyard if it's sunny out to get much better lighting.