Black Square Problem

I am trying to illustrate tension in this image, as you can see in the toppling squares. I thought playful was the hardest to illustrate. Congested, I believe, was the easiest to illustrate. I chose this word because I felt like I illustrated it the best out of all the other words I had to do. Overall, I would give myself a B on this assignment, I could've been a little more creative I think.