Can someone fix the grammar and make it sound super professional?

Ok so you are trying to write in 1st person point of view. However, the protagonist isn’t writing something that is happening at the moment. Instead, the protagonist is writing what happened to him or her in a period of their life because if they were writing in the present moment they would probably be dead. So your story should go more like this “All of the sudden I realized I wasn’t alone. I turned back and saw people who had green colored skin and by their sides were their green children. My head was very confused, I thought “What weird people! They live in their ugly green bodies, living their own way and looking at me with their weird green faces”

For the 2nd paragraph correct your gramatical errors. “Johnny Depp;” “...ice age. Then, the leader” “...with me. But, I didn’t understand any other language other than English”

It’s pretty good and it’s very original you just need to get your ideas in order. Hope I helped you

the sentence that avoid faulty coordination is:

culture, which is well represented in philadelphia, plays a major role including theatre, music, and the visual arts.  

faulty coordination occurs when the writer gives equal importance two different ideas (clauses) which in fact are not equivalent. in order to correct a misplaced clause or idea, the writer can place less important or emphatic ideas in a relative clause as in the previous sentence.