The anatomy is impeccable albeit the pose is difficult to maintain. The balance seems to fall forward unless her arms were behind her or she was kneeling on some pillows or holding a Sybian.

Someone who resorts to prostitution or promiscuity as a form of escapism.

Low but never zero

Just a suggestion but maybe you can revisit some of your old art and practice adding some color to your most favorite ones? But if you want something fresh to work on, maybe practicing background?