Different color bridesmaids -- and different styles?

knottie90611bfa83523e95

I have loved the idea of my bridesmaids wearing different colors, so that part I have finally decided. 
I was thinking they could wear slightly different styles (all very similar), and I think these 4 dresses look awesome together! I have gotten mixed reviews back when I ask for opinions...what do you think? Is it too much to do different colors and different styles? Has anyone pulled this off? Or should I pick just one style.

MyNameIsNot

I think they all look cohesive and nice together. My concern would be that these 4 dresses are all very similar cuts and silhouettes. If a person won't look good in one of them, she won't look good in any of them. Are you confident that your attendants would all be comfortable in these styles?