I'd like one of your 3 focal points to be the casting of female actors in roles originally written for men. Even if true , the second observation is insufficient . It doesn't tell me what the effect was, and why it worked or failed to work. DON'T just write a list of the elements on which you will focus. Be sure to proofread.
Slipshod presentation has a negative effect on the reader.
Give your essay a title that would enable a cold reader to know what it was about.