Need a new hair colour (pics)?

I need some help choosing a hair colour. Here's some various pictures (albeit, I'm hiding in some of them - which isn't too relevant as I'm mostly concerned about the hair looking okay) of different hair colours I've had over the last 5 or 6 years and loved that I'm considering going back to.

A section of my hair is currently longer in the front (it goes down to the cleavage area, the rest of my hair stops just above the breast) and coloured black. That's not going anywhere so whatever you choose has to match it. Details on why you chose what you chose are great. My hair is naturally curly (ringlets) and fairly coarse (I'm half black)

http://tinyurl.com/57w2pt - Brunette

http://tinyurl.com/6osra5 - Bleach blonde

http://tinyurl.com/57u8jv , http://tinyurl.com/675bkj - Purple

http://tinyurl.com/679u2e , http://tinyurl.com/5g357w - Pink

http://tinyurl.com/6lx5nd , http://tinyurl.com/59zwx4 - Black

Better/more pictures can be provided if needed. Open to any and all suggestions