Besides being the wrong color and probably the wrong fabric, shouldnt that ruff match the ruffles on her sleeves? since the idea behind the ruff is making it look an ornament of the chemise. (usually white)
I've found a little extreme example of what I mean:

Ruff aside, the entire scene on the upper part of the cover gives me the impression that she is wearing a huge carnival mask with a painting... Unfortunate cover.