Describe in a few sentences, why can having an understanding of imagery, proportion, balance and design to you to
evaluate the validity of an artwork

Having a good understanding of proportion, imagery, and balance can give your work a sense of realness and accuracy. Proportions help everything relate to each other and come together as a whole. imagery can help with depicting what something would look like and how it fits into a image. Balance and design are also important to help guide a viewers eyes through a piece to help them see the whole picture and captivate them.

What it's saying is that colored pieces of canvases is a piece of art

Good patients tbh with you