Great Combination by my opponent

So I started studying and playing in my quick games the St. George Defense.  It is really odd and seems wrong, but has been played at the very highest levels of chess by some adventurous GM's.

I thought it would be good to play in a turn-based game as so many people tend to play to passive against it as white. 

Well here I totally missed a well prepared combination by a very strong opponent.  Did he make any errors at all?  I asked him during the game if he knew the St. George or if he was using the Game Explorer to aid him...he said no.  Hard to believe as he was moving with good speed during the game he played the opening in no more than 10 mins time. So he found all these moves without the game explorer aid, pretty much over the board.

Really beautiful even though I was on the recieving end.

You really should be playing a quick c5 as Black in the St. George

My queens steer clear of files with light squared bishops on them. That discovered attack is a common theme in many lines.

I think you committed blunder at 14th move. Instead of Qd5, Qc8 was better move as your queen under the hidden attack launched by yours opponents rook.