I certainly did get lucky, although with Quirine's move rate the odd blunder is to be expected, and generally was more pleased with the other game (until the end). Although I've since given it a quick analysis with Chessmaster 8000 (all I have), which suggested I was slightly ahead before the blunder (a surprise to me) - if anyone could suggest what could have happened had his last move not been made.
I had spotted the chance to win the d-pawn, plus hoped I should have gone on to win from this position, queen and two pawns for a knight up.
Still, I'm rather pleased by the result. Nice to have the scalp of such a good player.