Activity for Mary

I do NOT want to spend any more money than completely necessary on flowers! i am considering silk flower bouquets for bridesmaids but a real bouquet for myself. What do you think? If not, do you have Any other suggestions? Is it worth trying to DIY...

My colors are green and brown. We are getting married at a golf and country club. I am concerned about how green bridesmaid dresses will show up in pictures against a green grassy field. Does anyone have any experience with this? Can anyone help...