I find the Elmars to have some of the most beautiful renderings. While they still have some character, there's more to it than sharpness. They are crisp but not overworked. They deliver color clarity but are not over-saturated. They deliver contrast, but are not harsh. They produce clear lines but in a very natural way. They pretty flat but not flat as a macro lens. Overall, they see the world in the best possible light, and always with gentle, positive spin on things.
The images are convincing, if imperfect, they tend to err in the side of beauty.
Great shots! Because of your fascination with Elmar-lenses and their rendering I'm really curious, if the old Elmar enlarging lenses render in a similar way. Are all Elmar lenses 4 element or are there different designs?
I think the 50/3.5 would be similar to the 50/3.5 LTM and M, and the 65/3.5 Viso, sometimes called Macro, is a similar optic. The Elmar 135/4 has a removable head which can also be mounted on bellows. The 90/4 also has a removable head, and while the character is fantastic, it's resolution lacks and aberrations are more obvious.
Leica later used Elmar to mean slower lenses, and variants like Tele-Elmar, Vario-Elmar, Tri-Elmar, Elmarit, Elmar-C, they are all a different thing and not the same thing. The Elmars can't compete on resolution and other fronts with the likes of Fujinon EX, Apo Rodagon, much less a the better Tomioka lenses. They are just 4 elements and optimized for things like portrait.
I find that with age, some may develop some outlining in the bokeh balls. A clean copy should have very little of that, and be gone by f4, a tiny bit closer than full wide. You can date with serial. I think all 65mm will be a more modern computation, and if there's any enlarger made prior to 1952 it likely will resemble the pre war Elmars (single coated, more balanced, slightly lower res than the Red Scale ones).