1v1 ne - orc : need help

[[cataclysm]]

k, so i lattered this orc in a 1v1 game...felt like i was doing alright, went bears/dryads/casters/faires...he went taurens-kodos-casters-raiders.....watch the replay please...and give me tips on what i did wrong/what i couldve done to counter that....its more towards the end of the game. but there could be some mistakes at the beginning

thanks