In Punctuation^x, Letter of motivation^x

I am French, leaving in the US and need to prepare a CV and a letter of motivation for a position in the UK. In reading many posts on this (neat) forum, I noticed that there are many differences in the format of CVs for each country and I would like to make sure that what I read seems...

Hi Everyone, I just finished my letter of motivation for a Master of Economics programme. I could sure use some more pairs of eyes to check me on my spelling and punctuation. As I'm not a native speaker, I 've also been wondering if all my sentences make sense. Please help me with your feedback...