>>352858
In addition to everything this anon said you should definitely build muscle in your lower body. Consult the diagram. Gluteus medius to make your hips wider. Gluteus minimus and maximus to make your butt bigger. Additionally you can also work your quads to make your thighs thicker and any muscle in the area around your hips is good too.
Losing muscle in your upper body can help contribute to an hourglass figure.
To find your ideal body fat percentage you're just gonna have to gain or lose weight until you're happy with your body. Just don't get too skinny or you'll get boney and lose your softness.
A high estrogen diet will make your skin smoother but that's totally optional.