Lady with whip

Not sure how this will work out but I'm experimenting with this photo by uploading at HD (1080px high). "Lady with whip" was captured at the Oxford A&P show in March. I posted a B&W version on G+ but this is the original colour. Usually I tend to think that a particular photo should be either colour or black and white as dictated by the subject matter and the capture but, in this case, I really can't decide between the two:

D600 1/320 sec @ f5.6 and ISO 200. 210mm on a Nikkor 28-300. Processed in Lightroom and PhotoLine using Topaz filters.

More pictures here!