You'd have to ask a solar physicist about those solar structures I'm afraid or an optical expert about the image properties, I just work with camera software. If you haven't already you can download their press release which goes into a bit more detail than the main article [1].
I've also found some interesting bonus footage of the camera in a test setup for those that are curious (the actuating gray box in the background) [2]
These images seem to have a sort of “enhanced blurring” and depth-flattening reminiscent of early 3d ultrasounds.
Am I interpreting that right? Or is the surface of the sun really like that?