There is not much to say, these shapes have 1.2mm walls, so basically designed with a 0.4mm nozzle in mind. The single 0.4mm line on the sharp object is really hard to print, well you can see that from the pictures.
I created these basic shapes for the nozzle testing video:
I also used this amazing print to compare all the details with different nozzles - https://www.printables.com/model/209121-cali-dragon
The author hasn't provided the model origin yet.