One question: did you ever check your assets at 100%? Because all of your postings until now show artefact, focussing errors etc at 100%. And it is essential to check the assets before submitting.
Your first: artefacts, probably to in camera processing or a small camera sensor doing too much noise reduction:
Your histogram also shows some odd exposure issues:
Some editing is required, especially adding contrast:
That would, however, not get rid of the artefacts.
The second asset is quite the same:
Translate
ABAMBO | Hard- and Software Engineer | Photographer