Suggestions of types of flowers in wedding?

I’m getting married in May. This is the color of my bridesmaids’ dresses:

http://davidsbridal.ugc.bazaarvoice.com/7294-en_us/235105/photo.jpg (Clover)

The dresses were originally supposed to be pink, so I mostly had pink and white roses in the bouquets (with white freesia in mine instead of white roses). I’m not a flower person, so I don’t even know what would look good.

My wedding colors are pink (like a blush color), green (like the dresses), and champagne, but I also plan on having silver accents.

Like I said, I’m CLUELESS about flowers, and my florist was no help, so I’d like some suggestions on pretty flower combinations that will look good with these dresses. I also need ideas for flowers for the arbor and type of petals for my flower girl.

Pictures or just names of flowers would be great!