This is what I put. Please put it into your own words if you can.
Having an understanding of imagery, proportion, balance, and design can be helpful for a few reasons. Understanding imagery can help you understand where the artist was coming from and what they were trying to convey with their artwork. Understanding proportion is very important. If the artist is trying to make a realistic piece, the proportions have to be perfect. Understanding design is important because without a design, there is no artwork. Its like the saying "measure twice cut once". You need to design your work before you create it. That would be like trying to draw a portrait without a pencil sketch.