this kind of sky is really hard to render, your camera has less dynamic range than your eye, and it's not able to capture all the details in the shadow/highlights. You can use a polarizing filter to darken a bit the sky, or a neutral gradient filter.
Best way is to get multiple exposures ...
Exactly what Revenant said ... he calls me Mrs Instant Gratification!
very nice set ! a bit too much of white vignetting IMHO. Dunno what you used to add it, but next time, try to apply it only over bright colors. It s nice to lose details in the white background, but you wana see more details in the dark parts, in this case, your horses ! :)
you ve got some really nice shots on your blog, but not a big fan of the pink background. I find it too aggressive and it disturbs the eye.
Also try to move your watermark in a corner, it s difficult to appreciate a landscape with this chunky text in the middle. :)
keep up the good...
Thanks for your suggestions for improvement Dave, I am always pleased of help.