God, I wish I had anything good to say about the way this game looks. I like the new portraits, though what they did to Karen bums me out. There are some ok-looking depth of field things that make it look a bit more "diorama-like," but generally it just looks really cheap, particularly when you hold it up to other games on Switch like Link's Awakening. I think it looks worse than Stardew Valley does, aesthetically.
Which is a shame! FOMT is one of my favorite games of all time, in spite of the many janky things about the original release. I can't imagine paying $50 for this game right now, but I think I'll pick it up in a sale, because I'm sure that the core gameplay underneath is still wonderful, and I'm interested in seeing the romances with the new characters. If anyone hasn't played FOMT before, it's definitely a great place to start with the series! I'd even recommend checking out the original version (which I believe is on Wii U VC) if the new art style turns you off too much.