Yip, nice one!
From a more theoretical point of view, if you are looking for Bokeh - try primitive lenses at large apertures.
I love my Dacora Digna with Dacora Anastigmat 4.5/70 (ok, a point & shoot 6x6, not a rf). It's got all the old "qualities" like vignetting at the very large and very small apertures, and a gorgeous "coma" - forming all the highlights that are out of focus into little comets with the tails in the same direction around the center - nauseating!
I think part of the charm of the really old master photographs (Fox Talbot, Fenton, Hill, Lartigue) is due to internal lens restrictions (plus long exposure times).
So go for ISO 25 and a coke bottle bottom or rather a lensbaby in front of your camera...
(At least I prefer that one over, lets say, a Holga, because I keep control of the result through the finder of my SLR)
I'm also thinking of buying one of these 80 mm industry achromats and put it in front of my macro bellows to have a portrait lens like the old guys used it. Or as Prof. Vogel puts it in his book of 1926, "try a spectacle glass, it may well suffice for portrait purposes".
800 yrs Dresden
80 yrs Zeiss Ikon