wow, that's beatuiful.
I don't think 14 0-0 is a mistake by white though since a attack on the queenside by black could lock down whites queen, bishop and king or put the king in a even worse position.
White really don't want to move its knight away from the pretty centralized position but a simple Nd2 would make a great defense against blacks attack and I think white should have done this already at move 19.
Black play a great game except 23 ..Rf8 that very well could have cost the win if it had been met correctly with 24 Bxh6 by white.
after
24. Bxh6 Qxf3
25 Kd2 Rf6 (can't find anything better for black)
white gets a very good game.
Hope I'm not criticizing too much. I think you're a very good chess player.
Make sure to check move list and comments and please add your feedback if you find anything I missed or any mistakes in my thinking .