The last photograph is almost always an ordinary one
The last photograph of somebody is rarely a portrait. It is usually a blurred, unremarkable moment that becomes the last one only afterward.

A person at a kitchen counter, half turned, slightly blurred by movement. Nothing about the moment was composed.
Nobody photographing this thought it mattered. That's why it does.
Why is the last photograph of somebody so rarely a portrait?
Because nobody knows, while they're taking it, that it's the last one.
A formal portrait gets taken on purpose, on a day set aside for it, and everybody involved knows the picture is being made. The photograph that turns out to be the final one is almost never that kind — it's whatever was in front of the camera on an ordinary afternoon, taken for no particular reason, at a counter or in a doorway or halfway through a sentence. The status of "last" arrives afterward and attaches itself to whichever picture happens to be the most recent one that exists.
Is the ordinariness a problem to fix?
No — it's the entire content of the photograph.
A blurred half-turn, bad light, nothing arranged: none of that is a flaw to correct before printing. It's evidence that the moment wasn't staged, which is a different kind of accuracy than a posed portrait can offer. Sharpening it, recomposing it or replacing the moment with a more flattering one from another day would remove the one thing that makes this particular image the one it is.
Would a formal portrait work better here?
It would be a different object, answering a different question.
A studio portrait says how somebody wanted to be seen. This kind of photograph says what an afternoon actually looked like, unplanned, without anyone posing. Both are legitimate; they aren't interchangeable, and this design starts from the second one.
Is it strange to print something this unremarkable at full size?
It runs against the instinct to enlarge only the photographs that already look important.
Most people save their most composed pictures for printing at any size, and let a blurred, ordinary one stay small on a phone. Put at chest scale, the same blur and the same half-turn read differently — not as a flaw in the source image but as the actual texture of the day it was taken on. Size is usually reserved for occasions; this is the case for using it on something that wasn't one.
Why do people end up with fewer photographs of the people they saw most?
Because a camera comes out for the unusual day, not the ordinary one.
Nobody photographs the same kitchen at the same hour on a Tuesday when that Tuesday looks like every other Tuesday. The people seen constantly, every day, accumulate the fewest deliberate photographs, simply because nothing about seeing them ever looked like an event worth recording. It's a practical, unglamorous fact about how photographs actually get taken, and it's the reason an unremarkable image can end up being one of very few that exist at all.
Whose photograph is this?
Only your own, or one you have from your own family.
There's nothing to license or credit here — the value of the photograph is entirely in its being somebody's actual last one, which only the people who have it can know.
Does it print well?
Yes, and the softness that makes it what it is should stay.
A grey, slightly blurred snapshot like this holds up better in a muted register than a sharpened one — charcoal, slate or a soft grey garment, one ink, printed a little coarser than the source photograph rather than cleaned up. Restoring full sharpness would make it look like a different picture. This is likely the quietest image JustOG prints; that's the point of it, not a limitation to work around.
A different way of marking somebody's life, built around an occasion rather than a single frame, is a shirt made for the day itself — that piece covers the event; this one is about the photograph.
How do I get one made?
Describe the photograph at JustOG — what's in it, how blurred it actually is, and whether to keep the original colour or let it go quieter. Pick a direction, drag the crop frame, see it composited on the real garment, and it's made to order and shipped.
Designs other people have published are in the shop.
Half turned, slightly blurred, taken for no reason at all.