It's one of my favorite Leica lenses... on both the M10 and every film M it sings. Highly recommend the ASPH or a Version 4 non ASPH both are superb. On film its the only lens I've never considered using a filter for BW contrast, its baked in already.Oh..that is NICE.
I've been contemplating the elmarit 28mm as my first Leica lens. I'd heard it was sharp as all get out and contrasty....which your images seems to exhibit in spades!!!