Just my own note; I have a feeling that the pictures here show the cabins of two different types of aircraft and definitely two different airframes.
The ceiling, chairs, consoles, doors and interior overall are rather different.
I believe I've seen the same cabin in the latter two aircraft in the past, and they appear to have a noticeably older console configuration than the cabin shown in the first two pictures.
I wouldn't be surprised if the first two pictures might show the KQ-200's cabin, while the latter pictures show some other older PLAN Y-8 High New aircraft, such as Y-8X or something.