Is this cheeky fo you think (asking to read someones essay) ?

Im doing a degree and just recieved results from an assignment but didnt do very well in it even though i passed. I want to improve and noticed that a guy in my class posted on facebook that he had got 91% he posted a pic of the score/comments too.

I sent him a message asking if he would mind if i could read through/have a copy of his assignment so that i can see how high marks are gained. I said that id give him a copy of one of my research methods essays that i did well in in return. He hasnt replied and im wondering do you think its too much to ask of someone, am i being too cheeky?

My personal tutor told me to do this months ago though she said find someone with a high mark and ask them if i could read through their work.