Hmm... so the above photos are outside your grain/noise tolerance?
I do not really know - it is not possible for me to make accurate evaluations based on jPeg files shared over the internet. Plus, there may have been some type of processing applied, such as jPeg in-camera defaults.
The only way for me to know if an image is within my grain/noise tolerance is if I can see a RAW-based file that has not had any noise reduction applied.
Pretty much anything can be made to look good if we're only viewing little 1200 pixel long jPeg versions of the image.