CiG
Approximately Infinite Universe
I would agree that Annihilation had better production than The Void. Alex Garland has an eye that's tough to match. I honestly enjoyed the acting in The Void though. And yeah, the end was spectacular (I also loved the visual aesthetics of "the void"--i.e. the visions).
If you're a fan of the Annihilation movie, you should check out the VanderMeer novel on which it's based. It's different than the film, and so brilliantly weird.
I'll keep an eye out for the book, cheers. I think one of The Void's biggest strengths is how it created its own world while utilizing all the rules of our world, and slowly turned itself inside-out. I love watching a film impose its logic on reality in a way that is less jarring and more incremental. Annihilation kind of just throws you into it which serves more of a science fiction angle, whereas The Void tries to gaslight the audience in a really fun way that also makes it more horrifying.
Speaking of The Void, their next film looks a lot less serious but super unique and fun:
Something to look forward to in early 2021.