That crackle type pattern is interesting to see, but now we get into a problem area with those photos. Where was it? When was it? What was this airframe doing?
For example, find any photo of a 4x20mm armed Ki-84, and dollars to donuts they're sitting in disarray on a storage lot at the end of the war and were never used in combat.
Looking at the picture you can see that it's a field full of tall grass -- doesn't look like one that has much people (or planes, or trucks, or wagons) moving around these planes. It's sitting next to twin engined planes and in the background are maybe A6Ms of some kind?
The Ki-84 is in such weathered disarray that the anti-glare is flaked off on the cowling nose, and even the meatballs -- which were often lovingly touched up and cared for -- are fading and flaking.
To me, that's not a combat airframe. At least not without a heck of a lot of more information. It looks to be in storage. Many airframes at the end of the war sat without parts, without fuel, without pilots. Some were stored for a potential invasion from the West, but never used. To me that photo screams "not in use" in most of the details it presents.
