a shorter exposure and a larger aperature might have worked a little better. i think it might have been better with the spokes a little more distinct, but imagine this is more or less the effect you wanted. the composition is great. good contrast of form and void. keeping it to one basic color worked well too. 8
Definately shows motion. Your 'focus' is very good. you have a nice smoothe round edge. The lighting is very nice, and it is still recognizable as a ferric wheel. nice color too. Good luck in the challenge.