Davidzie :)

David odpowiada za stworzenie Xenomorphów tak w ogóle, czy chodzi o tę konkretną partię z filmu, a pochodzenie stworzenia jest dalej niejasne?

generalnie wydaje się, że to drugie:
Stworzył Obcych, którzy są na tej planecie, ale Xenomorph, jajo, a nawet Chestburster, różnią się od tego z "Aliena".

Nie zostało to wyjaśnione w 100%, także teoria że jedynie odtwarza informacje genetyczne, zawarte w czarnej mazi, chyba nadal aktualna.

Shaw's fate is mentioned by David twice. The first time is a lie, later he reveals the truth. He initially tells the Covenant crew that when they arrived on the Engineer's home world, the payload automatically deployed and during the chaos, the ship crashed, killing Shaw in the process. He later shows Walter her grave site and says he "loved" her. Way later on, Daniels stumbles upon David's work room in the Citadel. Remember that dissected body photo that leaked and everyone thought it was an Engineer? Nope. It is Shaw. We get an up close look at her face and it's quite heartbreaking. David sneaks up on Daniels and says something like (please note, this is not word for word dialogue), "What a curious little cat we are." Daniels replies, "She didn't die in the crash. You killed her." There's some other dialogue I can't fully recall, but David also says, "What I did to her, I'm going to do to you."

There's also a shot of Shaw's dissected abdomen suggesting that he experimented on her reproductive system.

Engineers didn't make him (Alien). David made him which I thought was far more interesting.

Czyli David tworzy Xenomorphy, mimo że w "Prometeuszu" znajduje się ołtarz z ich podobizną, a 20 lat po wydarzeniach z "Covenant", załoga Nostromo znajduje Derelict ze SKAMIENIAŁYM Space Jockeyem i ładownią pełną jaj.