It depends on your natural haircolor. If your hair is naturally dark, going blonde will probably not look good on you. My natural color is a dishwater blonde so I can go a lighter blonde and look fine because I am in my color range. You also have to take your skin tone into account as well. I would love to go dark, but I can't. I do not have the coloring to look good as a brunette. I wanted to go dark like Adriana Lima and my hair stylist said that I would look horrible with dark hair.
I thought the pic someone did of you with the red hair looked really good. You could also try some red or blonde highlights.