What would you play in this position?

I learn openings step by step. I know the mainlines to a certain point then I am on my own. In each succesive game in a particular opening, I learn a little more. Here is an example to where I currently left book in the Marshall. I am playing black and it is my move.

I continued here.

[Event "Rated game, 15m + 5s"]
[Site "Main Playing Hall"]
[Date "2006.04.14"]
[Round "?"]
[White "Schachfreak"]
[Black "Takchess"]
[Result "1-0"]
[ECO "C89"]
[WhiteElo "1793"]
[BlackElo "1521"]
[PlyCount "61"]
[EventDate "2006.04.14"]
[TimeControl "900+5"]

Paste game into this viewer
1. e4 {1} e5 {3} 2. Nf3 {1} Nc6 {3} 3. Bb5 {1} a6 {6} 4. Ba4 {2} Nf6 {3} 5. O-O
{12} Be7 {3} 6. Re1 {7} b5 {2} 7. Bb3 {2} O-O {2} 8. c3 {1} d5 {2} 9. exd5 {5}
Nxd5 {4} 10. Nxe5 {2} Nxe5 {4} 11. Rxe5 {1} Nf6 {2} 12. d4 {8} Bd6 {7} 13. Re1
{3} Ng4 {8} 14. h3 {14} Nh6 {9} 15. Bxh6 {7} gxh6 {2} 16. Nd2 {3} Bxh3 {5} 17.
gxh3 {13} Qg5+ {4} 18. Qg4 {2} Kh8 {59} 19. Ne4 {14} Qxg4+ {4} 20. hxg4 {1} Rg8
{2} 21. f3 {11} f5 {16} 22. Bxg8 {3} Rxg8 {3} 23. Nxd6 {2} cxd6 {5} 24. Kh2 {1}
fxg4 {2} 25. fxg4 {2} Rxg4 {2} 26. Rg1 {3} h5 {3} 27. Raf1 {4} Kg7 {3} 28.
Rxg4+ {2} hxg4 {2} 29. Kg3 {0} h5 {2} 30. Kh4 {2} Kg6 {1} 31. Re1 {
Takchess resigns (Lag: Av=0.25s, max=0.5s) 2} 1-0

Here I believe is a better continuation
http://www.chessgames.com/perl/chessgame?gid=1280329

or
http://www.chessgames.com/perl/chessgame?gid=1258265

Of course there are plenty of examples where white wins after ...Qh3 but it's a fighting game for black