I think you're right to go shorter and, while I love pixie cuts, I think you would definitely look much better in something fuller and poufier. I don't think really straight hair is the best style for you. (I would even think seriously about a perm or body wave on the top not on the sides) Regardless of the style you pick eventually, consider using a volumizing shampoo and conditioner that will make your hair look fuller and slenderize your face. Looking at the style in the picture on the left, I think an asymmetrical part would look much better than the center part because it adds interest and allows you to go with or without bangs for a little variety.

Anyway, here are a few ideas that would look really cute. Good luck hun :)))

Hi! maybe an all around layering of your hair will be good for you. also, try to have some highlights on your hair, it will give you some brightness and better framing of face. how about a side swept bangs and yes, part your hair a little bit on the side. and when you do, make a zigzag parting with a comb. this will make your hairstyle more natural..yeah i like your hair straightened it looks nice on you. but when you flat iron it try to make the hair go in towards the face, and not away from the face. try to wear make up too. try the nude color maybelline press powder/foundation on, a little black mascara on, a little rose pink blush on, a little dark brown eyebrow powder on, and your favorite lip gloss or lipstick will give you a new fresh look too.