happy

This photo can be used as rule of thirds the edge of the book would be in the intersection of the lines. 

Square

I did not avoid the mergers and I didn't balance it, you could say I didn't follow the rules at all. Even if it is  my picture I believe its bad. 

bowie

This picture is rules of thirds. The dogs head is right smack on the intersection. 

metal

This picture follows no rules at all, not even simplicity if I got a chance to redo this I would definitely take that chance.