I think this could have been a good shot if you had concentrated on the blue grasses only. Sadly, and particularly because your base is so yellow, the corn coloured grasses dominate as a subject so much that the blue looks faded and indistinct.
I like the composition, but there is not enough blue for me. It might have helped if you had desaturated the yellow (I would say that even if this were not a blue challenge).
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