I should clarify that it only looks washed out in some scenes and other scenes look spot on. Its a balancing act because if you go too far the other way with saturation it can become a bit heavy. I really think the only way round this perfectly is to go scene to scene. It doesn't necessarily spoil the viewing experience to see a couple of under-saturated parts, I think the unique selling point of your version is actually the palette you've arrived at, which gets the film away from the pink/purple end of the spectrum in a clear way. Maybe leave time for this version to sink in for a couple of weeks before you revise it?