Improv is when you do something that is not planned or written in the music. For instance a singer can provide improv by doing a run or adding in an extra note or something of that nature. improv is mostly a drama term that is used for an unscripted scene between two or more actors, typically they are given a topic and thrown into a scene with no prep time.
In photography, composition is the way of how elements are arranged to create the best shot. A good composition contributes to a nice photography. One example is street photography. In the streets, you can't control objects based on how you want them to be positioned. Instead, you anticipate for the objects to move in the exact spot on where you wanted them to be.
I believe that Hamilton, they were establishing dominance as independent women, stating with their body language that they could handle them selves, and the last one, i am assuming that you ment mean? so i think that the hand reaching out and the broom clutched in the other could symbolize that she was out for revenge, was mad and was cursing someone. ( I have not seen wicked so i am not sure what exactly goes on in that musical lol)
anyway, i hope that this was able to help and that you have a wonderful day!! <3 <3 <3
-Red
