Going on the rest of his stream, looks like he's shooting with film, probably a low-saturation film like Portra NC or Astia transparency film. If forced to guess (notoriously difficult) I'd pick Astia, slightly over-exposed. Going on this other photo at the same date/location, it's quite likely shot on Kodak Portra NC 800.
Lots of his other work seems to be fairly straight scans with minimal correction, and I've had similar cold tones with a lot of scans (though usually transparency film more than negative), as the scanner lightsource tends to be quite cool.
So, to mimic that, lower the saturation, lower the contrast (at least a little), slightly cool tones in the highlights. Bring the shadows up (there are no deep blacks in the photo). Also note the lighting: it's bright, but with no hard shadows; I think it'd be difficult to get this look on a day with full sunlight and hard shadows. You could add grain/noise, but a word of caution; despite it being a fast colour film, the size of medium format makes grain a lot less obvious than the same film in 35mm.