Problem with objects

In addition to what has been said:

• The image is lacking contrast. The left side of the histogram is missing entries.
  
  The right side, however has some nasty peaks due to sensor/lens limitations.
  
  
  
• The trees are flattened like if there was to much noise reduction. This is also true for the rocks in the background. Given the file size, I do not think however that the artefacts have been introduced with a high JPEG compression. I suppose the original file is a RAW file (if I remember well RAW file names start with an "_MG" by default).
• The sky is blown out, the transition between the sky and the rocky surface contains some artefacts introduced by the limitations of the lens and the sensor.
• There are some spears of weed in the image because of the low pov of the camera.
• The only sharp element in the picture is the rocky overhang. That's not enough for such a picture. And I even suspect that to be over-sharpened.
• Right to the rock there are some light artefacts like lens reflections/light leaks.

Some recommendations:

• I suppose you did put the camera on the floor or near the floor. It would have been better to use a light tripod.
• The focus should have been somewhere in the middle of image instead of the small overhang.
• If you didn't use a lens-hood, get one. It even protects your lenses from breakage.
• Use the full range of the histogram. This image (if the camera has been stabilised as I suspect from the exposure of 1/5s) could easily be composed from a bracketed shot. That would have given you a nice sky and a correctly exposed landscape. An gradient filter (physical, mounted in front of the lens) would have helped too. But that is more a question of budget, as those filters are not cheap (and I do not own a gradient filter neither).