well, you've got quite the colour range there!!
I've seen pics of weddings where each bridesmaid wears a different colour of the same dress- you could do that with the pink-blue-lavendar thing (might have to pick another colour or two depending on how many girls you have).
Also, depends on what the guys will wear. Do you want them to match? Are they willing to wear pink if that's what you pick? What sort of flowers do you want? What colours do they come in?
Does your wedding dress have any colour in? Mine has multi-coloured embroidery, so I picked colours that match the embroidery.
Where are you having your ceremony, pictures, and reception. If, for example, your church has a lot of red (carpet, banners, etc.), then perhaps hunter green would look a little too Christmassy for you. If you're having outdoor photos, try not to pick a dress the same colour as grass and leaves or it might blend in too much.
You might also want to consider other weddings of relatives or close friends happening around the same time. My sister is getting married a couple months after me, and I made sure to pick colours way different from hers. (she's having red, I'm having purple and green). Also, good friends of ours are getting married a couple weeks before us, and she's having light purple and I'm having dark purple- but we talked about it and both of us are fine with it. It happened by accident too- neither of us knew the other's colour until after we'd all decided!
Overall though, pick a colour you and your fiance love. It'll be in your wedding photos for the rest of your lives!!
