Sir Ridley Scott still is in HIS PRIME.
Maybe NOT in ALIEN films but yes in other films.
THE MARTIAN(3D)(2015) was the biggest success of his life and he still has close relationships with THE BIGGEST movie stars in this world: Leonardo DiCaprio, Tom Hardy, Matt Damon, Michael Fassbender, Christian Bale, Russell Crowe, Natalie Portman, etc....