Getting close to a source for f85r2

[oshfdk]

For me the main problem with connecting the MS you found (which is a very interesting find, notwithstanding) and f85r2 is that two of the three drawings depict a very common scene: a person with a flower and an elderly person with a cane and rosary. As far as I understand, absent hip replacement surgeries and modern therapies, most elderly people would have used canes. And I assume the pious ones would probably spend a lot of time praying, hence the rosary. It's quite possible to imagine two artists independently creating a sequence with a person with a flower and an old person with a cane/rosary. If I find two modern images of kids on skateboards or elderly people in reading glasses, I wouldn't immediately think both artists are related in any way, unless some specific details match. Which is not the case here. I don't find the hunching pose a strong indication of anything, hunching goes hand in hand with using a cane. And it's not even perfectly clear, if these are a cane, a chain of rosaries and a flower.

The third image - a person holding some object - would serve as a good confirmation given a very plausible match for the first two images, but otherwise the thing in the hand could be anything really, my first impression was some kind of globus cruciger.

I think there is still significant probability that the two sets of images are connected somehow. But I wouldn't put it higher than 50/50 chance.