you are in great shape, curvy and not overly muscular, womanly. you can starve yourself and do endless cardio to get leaner and more "perfect" but looks like you are not genetically predisposed to be super thin. you should be thrilled with your current look.
Your goal will be achieved if and when your total bf is reduced. Your perceived "problem" is not your ass but the total bf%. When that is reduced, your ass will be more defined as well.
Your goal will be achieved if and when your total bf is reduced. Your perceived "problem" is not your ass but the total bf%. When that is reduced, your ass will be more defined as well.