As I am sure you know it would be much easier to get the guys to wear brown or grean instead of PINK and then do a pink bout. As for the ladies, what about sage green dresses with a pink ribon/sash around the waist and pink and greenery bouquets and then for your flower girl do pink with a chocolate brown ribbon that way everyone is tied together. I dont know. I am in the same boat as you. Just picked out the groomsmens tuxes and had dresses for the MOH and BM but not sure if I like them now (waaaaay too informal and not quite the right colors to match the guys). Go with what you think would work best for you.

Best of luck!