That's not a bad suggestion. I thought about adding a numerical score but it felt like it was bit overwhelming at the time. Maybe I should revisit it though in the form of:

  Fail = 0 points
  Partial = 0.5 points
  Success = 1 point

There's definitely a couple of pictures where I feel like I'm at the optometrist and somehow failing an eye exam (1 or 2, A... or B).

I agree with this, some of those are "passing" and others are really passing. Specially with how much better some of the new model is compared to old ones.

I think the paws one is a good example where I think the new model got 100% while the other was more like 75%