Academic shoot reflaction

1.it was very hard for me because i forgot the rules.
2.some of my photos came out all clear and some did not
3.i think know that i know the rules it would be easy for me
4. i don't know something i would do the same
5. the easy rule to find would be lines and framing
6. the hardest rule would be the rule of thirds and avoiding mergers
7. i want to know the rule avoiding mergers.