Composition : Very nice composition with a "banded" feel. There are several bands of alternating light and dark that work well to my eye. The clouds on the left seem to throw the balance off just a tad, but that's certainly nothing you had control over.
Exposure / Lighting : Lack of EXIF (Aperture/shutter/ISO) data limits anything I would say about exposure or focus. I wish I had that info since my critique is severely limited without it.
Focus : See Exposure.
Post Processing : Nice choice of font and the border is simple and very effective. Any other changes you've made are not apparent and thus were well done :)
Challenge / Wow : Challenge was certainly met. I can easily imagine this as a postcard in a shop.
A lovely field. Really pretty. I like the angle and framing/cropping. The lighting seems good. The sky is a bit noisy. Has speckles throughout it. Otherwise, i'd buy this as a souvenier. Great shot. ~Heather~
Now this is a postcard. I haven't seen too many that are that convincing, but this is one of the best. Great colors, scenery, framing, balance to this shot. Nice work -9
Beautiful colours in this shot. Its simple and lovely, and I like the border, font and text you chose. Would be even more stunning if the yellows were just a bit brighter to contrast with the blueness of the mountain and the sky.
Like the simplicity and 'quiet' of this shot with the overriding blues and yellows (just put a red object in that field and you've got it licked for the primary colors challenge as well :) My only beef is with the dark area in the front. For my taste, the pic would have been stronger if it had started higher with the brighter yellows. Nice font as well. 7