I agree, she does have a Pre-Raphaelite model look about her, but the clothes, I would hazard a guess and say the above the ankle dress, scooped neckline and elbow length sleeves must date from about 1915 onwards. On the other hand, she may have been posing for an artist though which makes a difference to dating her outfit, but I think he/she might have chosen a different background to a fireplace (my Gran's looked just like that in her little back to back house in Ladywood). We can read a lot into such pictures, can't we?