How would you finish?
We are looking at it from black's perspective, the side I played in the game. I wasn't sure how to properly defend my a-pawn.
White can't go hunting after the a-pawn with his N, but 1.Rg5 Re4 2.Nc5 Rb4 3.Rg6! may be enough to draw for White. It's actually a very complicated position.
That's what I think too. I didn't think I had the ability (without his blundering) to win this game so I offered the draw. It seems like a very difficult position.