What is the fate of an adult woman who does not adhere to hijab, and can she enter Paradise despite her open display of adornment if she prays and fasts?

Allah has made it obligatory for women to wear the hijab and has forbidden them from displaying their adornments (tabarruj). Therefore, a girl who does not wear the hijab and displays her adornments has disobeyed Allah Almighty and deserves His punishment. Her matter is subject to Allah's will; if she has not associated anything with Allah, then her ultimate destination is Paradise. She must repent to Allah before it is too late.