This is a photo of Mark. It is showing the element of the rule of thirds. It is also portraying side lighting.
This picture is compositional strong in the rule of the third quadrant. In the picture marks head is in the lower left side of the photo. I really like this photo because of the contrast between the light and dark on marks face.
This photo makes it look like mark is looking off into the distance at something or pondering over something in his head. I also think this could represent that he is remembering something that happened or something that he fondly remembered in the past.