Question about dresses...

So I finally picked out my dresses today and I thought I would have my girls wear their dresses MOH choc and BM cornflower. My dress is light gold (like the pic) and MOB would wear a shade of brown. But..the dress she likes looks the best in eggplant. So now do I change my girls to shades of purple? I had wanted them to have BO-Ks of sunflowers and irises. My brain hurts.

BTW..first dress is mine(duh), 2nd is MOB and MOH/BM is the short dress.

TIA for your input

crap 'images too large'

My dress

MOB dress