Well played game. Might be a daft question, but what is the reti system?
How's this for a finish?

Nice game. I like f5! alot. It flat out wins.
I played f5 initially to prevent the long diagonal from opening up because the rook in the far corner was awkwardly placed. I was intending to play it even before he played Qe6. It wasn't until after that I noticed that I could mobilize other rook to chase the queen and once I did that, I noticed that I could pin the bishop in front of the king and that a mate was possible if he failed to play Kh8. I think he completely forgot that my queen was on that side of the board when he castled, or thought that it was not a threat, which it really wasn't until the rook became active.

This is actually one of my first games using the Reti system.