academic shoot

top left:
1) unusual perspective, sort of rule of thirds
2) the guitar head is the subject
3)I think it's pretty clear to see that the subject is the guitar head, I mean, it takes up most of the image
top right:
1)leading lines
2) computers are the main subject
3)it is pretty clear that the computers are the subject
low left:
1)leading lines
2) computers are the main subject
3)it is pretty clear that the computers are the subject