Don't get me wrong both are 10/10 games to me, but I guess I prefer the atmosphere of the demon souls remake to elden ring.
I didn't see this remake getting as much as love as elden ring and I think elden ring kind of overshadowed it.
I think it still has the most beautiful graphics of any Souls game to date as well.
I completely understand where your coming from. While I despise the brown and greys of that generation nowadays the remake is indeed very different and artistically closer to modern games.
And yet I can't hate it. The original game is very niche in no small part due to being inaccessible, so a modern one (PS5 owners) people can play is a great thing. It's also great that they kept the gameplay the same. It's a style of soulslike combat that isn't made anymore that I very much enjoy.