The flowers are beautiful, but they feel almost like an interruption in the imagery of the green covered hills. I'm not sure, perhaps I'm just being weird. Regardless of my eccentricities, this is a lovely image.
You're right, Ami....but it's because of the central position of the flowers and the dominance of the bald white sky.
A bit cropped from the right border and the sky filled with a very pale blue, brings everything together with a touch of vibrant colour.