Perfect sicilian?

Heey,

I'm pretty sure this is one of the best games I have ever played. I'm the white player vs the sicilian defence.

What do you think of the game? Did I made any major mistakes?

If some people would like to annotate the game that would be wonderful! But some remarks will also help me to better understand the sicilian.

Hope you like the game and help me or yourself to better understand the sicilian.

It looks like 12.g5 is a new move.  Most common is 12.Kb1.  12.Nd5 and 12.h4 have also been played.    Now black goes the wrong way with 12...Nh5.  He should play 12...Nd7.  13.Be2 is OK, but better may be 13.Nd5 Bxd5 14.exd5 and 15.Bd3.  13...Nf4 looks now good as it loses a pawn.  Better to play 13...Na5 and work on the queenside and try to exchange pieces on that side.  After 15.h4 (not 15.Bxf4?? Bg5), Black does not protect the f-pawn.  Black should try 15...Nb4, and if 16.Qxf4?, then 16...Bxb3 17.cxb3 Nxa2 favors Black.  After 15...Ne6 16.Qxf4 and White is a pawn up.  After 16...f6, White can play 17.Nd4! rather than 17.Qd2, threatening 18.Nxe6.  If 17.Nd4 fxg5 18.Qh2, threatening 19.Nxe6 and 19.hxg5 and 20.Qxh7+