Congrats to your ribbon. Great interpretation of the challenge.
What I like most? -> the separation of the white wing against the white clouds. well done
A nice crisp and bold view. A little noise visible in the blue sky in places. Some selective noise reduction would smooth that out quite easily, but it's not a major thing.
Nice color, focus, and lighting. Good photograph that meets the challenge. If I had to pick on one thing it would have to be the ground, I would of liked to have seen a little more in the picture. The green against the blue is visually pleasing. Good Shot.
Beautiful, simple and elegant. This shot is wonderful. BTW - Thanks for not beating me over the head with an environmental message. This could just as easily be in a free study, or a landscape.
Nice use of the rule of thirds. The more I look at this, the more I like it. It's simple, but all of the elements just work so well together. The little bit of green land, the stripes on the windmill, even the perfectly puffy clouds.
a great setting and composition for the shot - the sky, the rolling hills below - it all works very well - i just wish the noise in the sky could have been reduced - especially in the clouds