# data[].attributes.body
I think Rule of Leading lines is the hardest one, because it is very difficult to find a nice line picture for me. And You'll feel the line get further and further away.

# data[].attributes.body
For me Rule of  Bird's eye is the most easy  one, because I think it's the easiest photo to find. Also you can find a new world, and I feel satisfied looking at things from a bird's perspective.