Congratulations! Witty idea and you picked the most interesting version, imo. Perfect dof. Plus it isn't easy to make feet photos work in this place - you did good!
Like the concept, but this image ends up being about a foot, not about pants.... and phrases that use the concept of "pants" and who is wearing them are talking about leadership and control, so it might have been more effective to have a girl in pants and a guy in a skirt to show this aspect of the battle between the sexes.
I love the colouring and tone of this image. The composition is great too. It seems heavily processed, there are halos around the toes and the skin looks kind of smooth and strange. If you haven't smoothed or blurred or sharpened then it must just be my perception :) Still scores well from me. Good Luck.
I wish the light here was more dynamic, otherwise a great image, but hard to translate to challenge without title. I love the angle/pov and DOF here. Great job.