These are wonderful images. And what a wonderful dog to let you do this! Mine would NEVER allow it.

As to sharpness, I'll admit to doing some pixel-peeking, and you are right to have concerns. I can't tell if it's simply lack of focus or movement that caused the softness. Were you on a tripod? As both the dog and the trees and basket appear to be soft, I think it's either a mistake in focusing or slight camera shake. Any time I'm shooting in darkened conditions, I find both focusing and camera shake are problems.

I'm unclear as to what you consider a "sharpness problem"? There are parts within the image, mostly seen around the basket that are absolutely sharp, some may even consider too sharp. There are a few areas around the dog fur that appear as if there was wind/movement but that would not be a sharpness problem but movement that could be arrested with a faster shutter speed.

What did you focus on?

With respect to settings, I would question whether you wanted/needed the deep DoF, and if not you could have gained some speed and/or drop in ISO. A reduction in DoF would have isolated the dog and reduced the business of the scene, just an option.

For info, I downloaded both images and looked at them in PS at only 1:1.