B-Rad's replay was made ages ago. And by ages, I mean a year and a half at the least. I remember it being in the stock replay list when I first joined. Shouldn't be comparing anything to those replays anymore, as the relative skill levels of players back then was considerably lower than what it is now.
Your replay is not bad, a little symmetrical and stiff at places it shouldn't be, but otherwise decent. Keep working at it.