What Do Ya`ll Think?

My sister is going to have a quinceanera, and we were thinking of making the dama`s dresses 7 different colors. Each 2 damas wear a same color. The colors would probably be: light pink, light yellow, light green, light purple, light red, baby blue, and maybe silver. We thought it would be a good idea, becuase we haven`t seen that around here. Our mom says that it`s how it used to be, the different colors represent a garden of flowers. It`s sounds like a kool idea to us, but what colors would we use for the decorations, or could we use all of those colors? What do ya`ll think? Should we do this?