Can you proof read my invitation letter?

Your letter is perfectly understandable as it stands. Good work. (How's that for positive talk?) I am reluctant to fix it because I think it will tempt your prospective guest more the way it is, but if you want...

Dear Peter Lee,

I am a design student from XXX University. I am working on a design project called POSITIVE TALK that aims to encourage people to think positively through positive talk. The idea for my project was inspired by seeing that our "after-80s" youth think too negatively and that some of them use violence to solve problems. Although I was born in late 80s, I have a different point view from theirs. First, I admire you, and I hope that with your help I can promote a good positive atmosphere in Hong Kong through my creative method. It would give a great boost to my design project if you could say something positive in my short film. In my design project, I will create a platform via the Internet to promote positive thinking. I will create short film which records Hong Kong people speaking something to encourage our after-80s. I will perhaps invite some after-50s to speak some positive words to encourage our after-80s youth. I will interview people in Hong Kong.

I would be grateful if you could say something positive to our Hong Kong teenagers. I think my short film would be a good platform for sharing your positive talk among our designers and artists, the people who work in the creative industry. My POSITIVE TALK project will be shown at the graduation ceremonies of XXX University. It will also be shown at the designer show in XXX during June. Finally, I will put the short film up on the POSITIVE TALK website.

I hope you can spend a few minutes to talk positively to us. If you are interested, please feel free to contact me at 91231234. It would only take a few minutes to say your positive words.

Yours sincerely,
Agnes Lee