She looks a hair thin, but not near the danger zone yet. I'm sure she'll get eating for you soon. Young BPs fill out pretty quickly when eating consistently. Also keep in mind they add length before filling out.
Like hila said, as long as there's no significant weight loss I wouldn't worry yet.
That being said, it's important you keep taking the steps you're taking and applying what you're learning. Getting husbandry dialed in is priority one, getting her eating is right behind that. Once your husbandry is fixed you'll have better success feeding too.
Keep up the good work!!![]()