Thanks for the images.
When I previously analyzed 7Artisans 50 1.1 images shot at 1.1, I decided that the image quality was not to my liking.
When I previously compared 7Artisans 50 1.1 images shot a f/2 to Voigtländer 50mm f/1.5 images shot at f/2, I concluded that I preferred the Voigtländer images.
The 7Artisans 50 1.1 may indeed be a good substitute for the Thambar but I was looking for a good substitute for the Noctilux.
Your images confirmed my previous conclusions.