I'd like your thoughts

Here is a game I played on FICS.

I've annotated the game, explaining all my moves. I'd like to know wether my analysis is correct. I'm pretty sure that I could have won this game but it was drawn, so I'd please also like to know where I went wrong.

Here's the game

EDIT - I'm playing as White.

I think the main reason you didnt win was that your king was never safe and it allways gave your opponent counterplay.  at the end the position was probably winning for white but taking a long time

Move 15 made it draw. If bishop to e3 and then knight to b7 u win for sure!

I think that, on principle, you should not offer a draw when you have an extra piece. You should fight for simplification...and remember that, while his passed a-pawn looks threatening, you have the correct bishop with which to cover the promotion square.

 I would have played 17. Qxa6 because that way he can't fork you. Also, using the Queen first threatens Qa8+ Nb8 Qxb8+ winning a Knight.

At the end, you have one more piece than he does. I would have done my best to trade pieces if possible and if I couldn't see a way to do it then focus on each pawn with as many pieces as possible and he should have serious problems defending.

Instead of 13 exf7 why not 13 Be3?  If 13...Qxc4 14 Nxb6 check.

I agree with quequeg that after you won a piece you should have brought your king to safety (eg, 16.Nf3 Qb4+ 17.Bd2 Qxb2 18.O-O or 17.O-O-O) rather than immediately entering sharp complications--it's the defender's job to try and complicate things!

I guess you offered a draw because you play with no increment. In OTB chess you typically have a delay or increment so you can finish off such games. I try to play my online chess the same way to reinforce good habits like not offering a draw a piece up. ;)

In the final position can you try Ra3 with the idea of Nb2 winning his a pawn?  If he goes Nc5 to protect the pawn you have Be3.  You also have the advantage that your h pawn has the "right" color queening square, so even if he somehow trades rook and manages to win your g pawn, you still can win.

27... Rd1+?? is a blunder

28 Kf2!  Discovered attack against the rook, while threatening promotion!

The lesson?

Always look at the whole board!