First tournament game of the year

This is my first rated game of the year and my first win ever.  I was against a player 400 point higher then myself.  He is strong player who can has reputation for his tactics.  Players have seen him in what they throught were hopelessly lost only to come back to the board and see a draw or win.  He is very thoughtful and I know that I should not and cannot rush my moves in this game. 

I did manage to win this game by taking advantage of his mistake on move 8.  From there I played careful and acurate and won the game. 

I have not spent alot time analysing this game but have thought about how things might have gone differently if he had played move 8.. Nxd3.  My conclusion is that I would still be in a good position but far from winning.

I am very excited for next week's game on Thursday.