I was getting ready to burn a Queen mix CD to take with me when I go shopping later, And I had planned to put "The Prophet's Song" on it. Well, After I had picked out all of the other songs I wanted, I saw that I only had seven minutes left at the end, And could not use the song... So, I decided to chop it up! Here is the end result. :P link
Not bad. I think you're relying too heavily on taking out sections which sort of have near silence before and after, rather than genuine editing from one place to a similar place. But it's a start :)