I thought Edward had blonde, short, spiky hair (even though the book says bronze hair). Tall, muscular build.
I thought Bella had blue eyes, heart-shaped face, a small nose, mid-back length brown curly hair (like Nikki Reed's), a small figure, long legs.
I thought Alice also had blonde hair in a pixie-messy way. Very small and very tiny!

alice's hair is black morone

Yes, I Know But I Just Imagined Her As A Blonde For No Particular Reason

The Cullens actually looked similar to what I imagined them to be. Jacob was different. Charlie was a little bit than I thought. Victoria too. Angela is suppose to have brown hair. But I think she has black in the film. Mike was different than I expected, a little less nerdy I guess. Jessica was roughly what I imagined.

I aways imagined Alice to have long blonde hair; and to have the body of seriously ass-kicking volleyball player.