Women’s Awrah
Please watch the video series Khawateen Ka Parda, by Ghamidi saheb which addresses all your questions. In short, only the private parts are called Awrah. The adjacent parts to the private parts are covered in order to fulfill the command guard your private parts. However the body parts away from the pro private parts are covered to achieve the highest level of decency. To cover them is not obligatory. So if one exposes them it is not sinful. But one should observe the cultural norma of decency.