Well, I'm probably the odd man out here but, being 70 years old, I'm also probably not part of this movie's demographic.
The short of it is: The Eternals pretty much sucked. It is highly derivative and peppered with cinematographic cliches that are only matched by the cliche content of the script. Don't worry, if you're young you probably won't have seen all the donors.
The characters were all but lifeless. The first hour was quite boring --but that's to be expected when you need to establish a new universe. The problem is that remaining hour and a half (+/-) was not much better.
The conclusion of the movie suggested that there might be a sequel. Hopefully they'll reconsider and spend the money on something more productive --like birdseed or fertilizer.
Sorry folk.