Dresses For Days

I have a purple Cotton dress I want to break up the Color by tie dyeing it I don't know how. I would like some moss green and other like colors that go with the purple. Can someone help me?

As a crossdresser, I am going out to dinner with a friend and not sure if I should wear a white skirt past knee length, with black top and sandals or a plain black summer dress.

I want to wear something that is preety and will just make me feel feminine/girly

Prom isn't for a while, but you can never wait too long for that stuff.

I am 5'4, average weight, and my shoulder's aren't very wide.

I am thinking of a cocktail dress....

what about this one....

http://www.promgirl.com/shop/dresses/viewitem-PD476052

If the link didn't work, go to promgirl.com and look in purple dresses and it'll have spaghetti straps, and silver flowery design at the bottom, and a black sash at the waist....and by "Blondie nites"

Wound this suit my body type?

By the way I have light skin, brown hair, and blue eyes.

If not that, keep in mind I want a dress I can move in.

thanks guys:)
Oh, and also what's the style these days...?