Obviously I don't know you, and there is only the one photo to go by. I like the long hair as it suits you. I can't picture you with short hair.
That being said. If you want to try something short, go for it.
Tell the stylist what you basically want style wise. But you want it to accent your face. You don't want your face to take away from the style. You don't want your face looking to long or wide or whatever.
You're an attractive woman. Your face is quite symmetrical (that's a good thing.)
Quite often women with those assets can pull off just about any style.
Cut just a little bit, but don't cut it short. I agree with the others. Long hair makes you look more feminine. Putting layers would create volume and would make it look more bouncy.
You can change your look by: - coloring it or putting highlights in it - I think side-swept bangs would look good on you and make you look younger - maybe, if you're daring enough, perm it =) Your hair doesn't seem to be stick straight, so perming might work. And it would look fabulous and make you look more sophisticated and pretty without having to spend hours with the curling iron!