Originally Posted by
Mike Buckley
Agreed with all of the above.
About the vignette in the second one being discussed: You added the vignette because the foreground was boring to you. Consider cropping the foreground anytime in that situation as an alternative solution. When you do use a vignette in a traditional landscape style, try applying it only to the land. When also applying it to the sky, you create a situation that rarely occurs in nature and never occurs if the sky is cloudless. You might like the vignette in the land in this image if you eliminate it in the sky.
Consider cropping to eliminate about half of the green grass in the last photo. And if you ever get around to immersing yourself in making black-and-white photos, please make sure you revisit that one.