Drawing of young girl – about 1800

Not sure where I got this (junk shop in Munster Road, Fulham?) but it shows a young girl, presumably Jewish (see the Star of David outline behind her head and the style of hair - echoes of the world of George Eliot's novel Daniel Deronda.)  Could it be by Blake or Flaxman? Possibly it is a print that has been hand-coloured. The clouds are dramatic and somewhat foreboding...info welcomed.