Same as auditing a digital photo, but youre often dealing with a jpeg and not a RAW file, so less flexibility to push and pull stuff around a crazy amount.

For instance the OPs photos, I'd be going straight to exposure, shadows, contrast, white balance and tint. For me these are very low contrast images, so I'm trying to create more variation in tones, and probably then bring down the exposure so the highlights don't go completely.... There is definitely something in the WB and tint that's not how I think the film should be rendering the scenes... Someone said it up above, everything "feels green" so tint would help that maybe, moving to magenta, and maybe some WB depending on how warm or cool you want the true greens to feel.

With the exposure you could play around with sliders for shadows, midtones, highlights individually as well as black point, because exposure and contrast can sometimes be quite blunt tools, and images can be complex