He just kept shooting the sun after the jumper cleared, and stacked up those shots. I think saying it's a 'composite' devalues the image and just makes it seem like he cut out the jumper and pasted on to the sun.
If his images were real they would have shown the powered paraglider too. The images are a composite of photos that he took of the sun and a frame from the video that he took of the jumper.
Is it pretty? Certainly! It's art! But it's 'photography' the same way the 'So Yummy' YouTube channel is cooking.[1]
Even multiple exposures of one frame of film is, as far as I can tell, still generally considered one photograph.
All photos have an exposure time; that's an inherent property of them (think film). Compositing images digitally on top one another is not an inherent property of photos.
You can double expose film, and I think that's a finer line, but I think the distinction most people care about is really analog vs digital.
kridsdale1•2mo ago