Interestingly enough, the image on this thread is not the same as that of the aforementioned portrait, itself, as seen in the final, Technicolor shot in the film. In that, she's looking down to the right of the frame. Not smiling outward, as if she's promoting orange juice....
Amazing, how ads often change images for greater promotion.
No doubt, the image of the painting as it is was considered too, you'll pardon the expression, downcast....