• in this experiment, I learned a lot about how to use objects in combination with design elements and principles. To be honest, it's not easy, because the size of coffee beans is very small, it's not easy to control, and the change is limited, so it's very challenging to use coffee beans to create good works.• due to limited resources, I didn‘t turn on the light at home, and my photos were taken with my mobile phone, so the picture quality was not very good.• the background is of low quality - I used a piece of white paper, so the effect is not very good.