Better minor piece strategy

In the following game, which I played at a local chess club, there is one continuous theme to black's strategy, win by having the better minor piece. In this case I focused on making my knight better than his dark square bishop. I think I played the position fairly well, but feel at a loss when analyzing the subtleties of these Nimzo-Indian positions. Are there any strong players out there who be so kind as to give me their feedback? Thanks in advance. Click on "Move List" to see my comments and variations.