Nice! I like the flare!
I have both the ELMAR 50/2.8 version I and II.
My chrome ELMAR 50/2.8 version I lens draws like a blunt tipped HB pencil; low contrast, seemingly softer images wide open, beautiful bokeh and pleasant tones. More classic look with B/W film and pastel-like colours with colour film.
My black chrome ELMAR 50/2.0 version II lens draws like a sharp tipped 2B pencil / mechanical pencil with 2B pencil lead; higher contrast, seemingly sharper images wide open, relatively less pleasant bokeh than version I and pleasant tones. I think images taken by the version II lens appears sharper probably due to higher contrast from modern coating.
Each lens has different character so I still keep both. Both use E39 filters. Both are nice lenses and your choice is just a personal preference like what type of pencil you like for drawing.