Vivien responds to GS's useful historical comment with "yes, I suppose I am judging it having seen a lot of work that followed and am not giving enough credit for the originality in its day. It's easy to forget the context and judge in the here and now."
Two very sane articulations, i.e., GS's historical contribution and Vivien's acknowledgement of her failure to put Dove in historical context (of judging it as if it were painted here and now). NEVERTHELESS--and I hope I will be forgiven this indulgence--I still, at bottom, evaluate, or respond aesthetically, to all painting AS IF it were painted "here and now."
Ultimately (and I would use this word only for art, never for philosophy, or the social and natural sciences) aesthetic creations are absolute, which is to say context-free or "transcendental."