I can PM you the link. Thanks!
I’d recommend you ask a trusted English teacher to read it for you. There is always a risk that someone you don’t know could lift all or some of your essay. If you do decide to send it to someone on CC (and some people will look essays over), I’d at least be sure that person is an experienced poster.
Really, no stranger can tell you how a Why Us works, if they don’t know what does. You really have to know Penn well enough to understand what they’d like to hear from you. And what they don’t want to read.