Ngelus by Millet, what brings happiness and thankfulness to our lives

Intro : Introduce the Angelus by Jean-francois Millet
Thesis : Every results had payment.

Body 1 : How much time it spent to crop the plant
Body 2 : How much effort it needed
Body 3 : How much pain the farmers and nature had

Conclusion : Time, Effort, Pain makes what they get. It also brings the happiness and thankfulness to our lives.

Please use art theories to explain the body paragraphs.