Request for Advice to improve my Image quality

[kazi Rakibul30439051t0qe]

Please correct me on how I can improve and what is wrong with my image.

[RALPH_L]

Photo 2: Straighten the left fence post. Remove objects in upper left corner.

[Jill_C]

In the first image, the shape if the bolts is inconsistent.

In the second image, one of the fence slats is both in front of and behind the horizontal board.

in the third image the nail heads are oddly shaped and inconsistent