Hi! I need help with a few corrections for a nonprofit project

Hi, my name is José and I'm a graphic designer from Mexico. I've post a request for some corrections for a nonprofit cultural project and so far only a non native speaker has helped me, but I'm not entirely sure if the corrections are right for a native speaker. It would be great if someone could lend me a hand with that.

This are the links:
https://polyglotclub.com/language/english/note/40683
https://polyglotclub.com/language/english/note/40685
https://polyglotclub.com/language/english/note/40687
https://polyglotclub.com/language/english/note/40688
https://polyglotclub.com/language/english/note/40686

And if you need any help with Spanish, just let me know. 

Thanks!