I agree with it looking thinner. The girl in the pic has some texture and thickness to her hair which gives it a bit of volume on it's own. If your hair is thin and straight it's going to be a waste to cut layers like hers, unless you want it to look light and thin the length down your hair. You could pull it off with a LOT of styling but it's one of those high maintenace hair cuts if you have thin straight hair and you don't want it to look scraggly.