I have done it twice before and am considering doing it again. Actually, just today, I was revisiting the vivienne files to reconstruct a hypothetical 333 wardrobe within a certain color scheme. I was trying to construct a smart casual wardrobe in navy, nuances of brown, olive, warm whites, and pops of teal. I do cheat in that I don't count outerwear or shoes, but I find that it makes me more successful in the long run.
I think your choices are vey cohesive and mix and match well.
I learned that I really don't need a lot if variety. Another important lesson I learned was that I bought a lot for a fantasy life. Even some precious real estate in one 333 cycle was stuff that was just too fancy for my life. I can't wear dresses or skirts at work, but I keep buying them because I like them. However, I only wear them once or twice a month. I finally broke down this week and made a pie chart of how I spend my time, by hour, in an average week. It was very eye opening. I spend 48% of my time at home (sleeping, lounging, doing household chores)! This makes me realize that I need to stop buying "fancy" clothes and focus on my home wardrobe.