Bet the title will garner a lot of comments. Lady in RED? I liked the way you caught the swirl of the garment, but the grays of the background was a bit flat. Also, there are some objects immediately above her head that look like an odd hairpiece. There is a strange strip of color and/or light along the hemline just above her right foot.
What a brilliant blue in that dress (I don't really understand the title!). I think I would have like the photo even more if the background color would have remained. Blue on green really pops.
Well this is not shot in a studio so I voted it a 1 as it clearly does not meet the challenge as far as I am concerned. Also, I have never been a fan of selective desaturation and this shot is no exception, in my opinion it just detracts from the image.