Hello,
Actually, the f-stop is f/22, and exposure is 1.3 sec according to the metadata, so I don't think it is out of focus, and DOF is fine. It is underexposed though, and this is the main problem.

The histogram shows the pixels piled up on the left in the shadows and black areas!
This can be corrected in post, as @RALPH_L has shown.
You could also lighten up some shadow areas, maybe use the doge tool or masking to do selective lightening and darkening.