He simply manipulates exposure. If it is also artistic, all the better.
Well, it’s a composite. The way I see it, of at least three exposures - skyscape ( including venus ) , deep sky, and foreground. The thing is that the deep sky ( Milky Way ) shot had to be “guided”, that is on a clock at least, to gain the image. Then it had to be merged with the unguided skyscape shot, which shows star trails.
All very artfully and scientifically done. A check with Starry Night shows that the sky scene is accurate. But I’m just saying, be aware of what you’re looking at.