[Klaus]

The cabbage patch shot looks rough,  the rest look fairly smooth.     What's  Nisen bokeh?

 

In #9 you can spot that the halo of the blades is very distinct instead of fading smoothly.

 

As far as the rest is concerned - the lens is, of course, capable of producing an extreme blur but that's just a function of the focal-length/aperture and doesn't relate to the quality of the optical design. That's like 500 horsepower in a truck vs a Ferrari.