The Chestnut Fruit tree shot I rather liked, I'm wondering if the depth of field was too shallow and there wasn't enough on focus to make a viable stock photo. There was something about the bokeh that looked unnatural to me, maybe over sharpening or something.
The other two had focus and color issues when viewing at 100%
Hope that helps!
As @George.Folster mentioned, probably too little of the chestnut tree in focus. IMO, it's also underexposed.
Hope that helps,
Michael Niessen - Photographer, photo-editor, educator
thanks for the answer, i'm going to look at the pictures this way tomorrow, and see what i can learn from it,
Examine images at 100-300% magnification.
#1 is underexposed and has a white balance problem.
#2 is not fully focused and underexposed.
#3 contains artifacts, water shadows are too dark, horizon is not level and the camera angle is not optimal relative to shoreline.
Hope that helps.