Posthumous gave you some very good advice but you didn't mark his comment as helpful?
Congrats on the ribbon but try to hold back on the 'tone mapping' because for me this would of been a much better photograph without the harsh editing.. trust me, I used to tone map everything but that was many years ago.
Congrats on the yellow!
I have to admit that when I first looked at this picture I missed the second pyramid. But then everything fell in place. The beautiful color and structure of the coats make up for the cropped leg of the last camel.
tips on composition... the foreground and background are competing and interfering with each other. One pyramid is coming out of the camel's hump. the same camel's head disappears behind another camel and his neck leads right up into the other pyramid, which also cuts through the rider awkwardly. No vignette will fix that.