/ic/ - Artwork/Critique

I'm at the beginning of Vilppus, and I'm trying to "give life" to some boxes. I'm not sure if it is understandable for other people what the boxes are supposed to be representating, so if it is completely shit, so I need some feedback.

The first ones are simply boxes, but there are others on which ones I tried to represent sadness, happyness, or doubt. As you to the right, there are also some scenes, like a dancing couple, a few fights, and a policeman aiming/arresting someone who was fleeing.

What are the most obvious mistakes in this, and how could I fix them? Thank you.