I'm so glad the little one is eating for you! That's a step in the right direction for sure.
And it can be so difficult to tell whats going on with little ones that are so emaciated. The delicate 'paper' skin is still a concern for sure! And sometimes they just lose that healthy look and can appear dried and dehydrated like this.
If she can tolerate a nice warm soak while you set up some more humid places in her tank, I would do that with a little gentle towel time after. Just to make sure. Don't apply too much pressure. Just let the baby work thier way out of the damp towel after the soak.
If you get a bit more dried skin off, awesome! But if not, just let the humid hides help keep that skin moist and hopefully the better meals will help the skin toughen up enough underneath for a good shed.
Don't pick or pull at any suspicious bits because if it is just that dull, dry nutrition starved skin, you could end up with a nasty tear. I've seen that happen firsthand when someone tried to assist feed a baby that looked like yours.
Baby steps and patience! I hope that things improve for you soon tho!