My best game so far on this site

I think your right, 10. ...Nd7 was to allow for some strong attack lines on your king. It frees up the pawn, which allows him to open up the F file for his rook.
As for 14. ...Ne4, I think it was the only logical space to go whilst opening up the d8-h4 diagonal, as well as opening up the F file.
Well done with the combination of moves following from taking his a6 pawn.
After, 26. Rfd1 Bc6, you might have considered 27. Bb4. This may have allowed for a Bishop exchange which I believe would have been good considering that an opponent with 2 Bishops in the endgame can be very threatening. The moves may have followed, 27. Bb4 Bxb4 28. Rxb4 Re8 29. Rd4... This would have given you 2 rooks doubled up on the d file whilst threatening the e4 pawn.
30. Rxa4 was an excellent move, allowing you complete control in the Endgame.
Your choice to keep both white pawns in the Endgame was a good decision, however checkmate with King, Bishop & Knight would have been very possible under those circumstances.
I liked your use of your Knight to draw the King from the centre, I hadn't thought of it.
Overall a well played game, you were quick to take advantage of blacks mistakes and took victory by storm!

"King, Bishop & Knight would have been very possible under those circumstances."
albeit a HUGE pain in the arse.