Now that's spooky. Mother nature is wrathful on us, she is not pleased!!! Just look at the anger in those clouds!
The clouds on the left side, they're great, they have a green and purple hue to them at the edges! Nice I like the one red flower, it stands out brilliantly against the nearly black and white appearing clouds.
Now. There is some grain in the clouds. I think a way to remedy that is to select little pieces with the most grain and apply some slight blurring, or just use the blur tool and manually blur it out (which gives you a more brush like, precise control over what gets blurred). I find that particularily useful for very grainy sky shots.
Also, the one verr close stalk, it's highly blurred, it really seems.. out of place. It's odd.
Awesome contrast, those clouds are spectacular Clouds are such a challenge. Keep at it.
hmmm... good guess, but i didn't do negative, i actually did a 89% opacity overlay layer of black with some other layers of around 30% opacity with white to bring out some more brighness. after that i changed the hue of the picture, and voila!!