Gloomwood - Thief-ish stealth-horror game by New Blood Interactive

Melan:
Keep in mind that this is one person doing everything, so i'd adjust the expectations a bit. What you should be expecting (visually at least) is at best around what you'd see from small Russian, German and Eastern European teams from the early 2000s making budget games (because that is what Gloomwood, DUSK, etc are) - games like Alcatraz, Nina, CIA Operative, Hired Team, AmsterDoom and pretty much everything Motelsoft made.

And note that pretty much all of those (except i think the Motelsoft stuff) were not made by one person but by small teams. While adding one person to a team of 100 wont usually be much of a deal, adding even one person to a team of ten can make a very big difference (and similarly, removing one person from a team of ten). This is why i wrote "at best".

You can also check other solo indie games that go for 3D environments without any form of hyperstylization (which doesn't really work for all games), like Brigand: Oaxaca, Frayed Knights (though this one had help from artists...) or even New Blood Interactive's own DUSK. And there are many more (just look for pixellated FPS games) i certainly forget.

Now i'm sure you can find some great looking non-cutesy 3D games by solo devs, but i think they are by far the minority to the point where they often make the news exactly because of that, like Bright Memory. And even that game was essentially a small demo, used largely assets bought from the asset store (and even had some stolen assets according to the dev) and nowadays it is worked on by a larger team to make it a full game. And really, even if there are people who can do that... there are also many who cannot :-P.

Of course i'm not saying that you have to like the graphics or not want the game to look better (who wouldn't?), just that considering who (and how many) is making it, you might be expecting a bit too much .