I love the ZM 35 f/1.4, but especially for closer focussing. These sorts of distance shots look great on a Leica camera, but I never like them on an unmodified Sony. I suspect these shots were with an unmodified A7r II, but I could easily be wrong. I don't think Kolari has modified the A7r II yet, but maybe they have, or perhaps this is a modified A7r. Either way, I think if you care about these types of shots I would do a lot more investigation before getting this lens. I think the mod has clearly improved corner sharpness, but I don't know that there isn't some remaining field curvature. I wouldn't be surprised by that as the mod can't get the exact same thickness of the cover glass as the Leica, and the flat field on the Leica may not translate to a flat field for the modded Sony.
It doesn't matter to me, as I don't plan to use the lens for such shots, but it likely does matter to a lot of people.