Figure Skating Posture

So my coach says my pelvis tilts back and I end up looking like I’m leaning back, so she told my to tilt my hips/pelvis forward and keep my core tight. But when I do that, my butt sticks out a little, and I’ve heard a lot of skaters have and need to fix that so I’m scared of over tilting my pelvis. I’m thinking everyone has their own weakness’s and I should just focus on what I actually have to work on but does anyone have a picture of what your posture should look like while skating? Or any exercises to practice posture?