The fear you have is completely normal. Just about every woman I know had some type of reservation about going natural. Whether if it's how they are going to look, what they are going to dowith their hair or even what others may say. I'm not going to lie, you are going to get some reactions. Esp. if you have longer relaxed hair and chopping it all off to two inches. Girlfriend, you will look great! It just takes some getting use to. It was a shock for me too going from collarbone length micros to hair that barely touched the bottom of my ear.
What I like to suggest to women who feel the way you do is accessorize. Go out a buy a few pairs of nice earrings and neck jewelry. If you wear makeup, go buy a pretty new shade of lipstick and eyeshadow. Buy or make a pretty, bright scarf. I'm telling you, it will make a world of difference and you will look great!