You definitively nailed something with the art style here
Yeah, re: nailing the art style – here's my latest attempt to get a consistent visual style of a low-resolution game using low-poly 3D environments and 2D sprites. Notice how characters maintain constant size regardless of camera distance.

For comparison, here’s the same scene in high resolution with traditional perspective scaling - characters change size based on distance from camera. This was an approach I've settled with for a long time because I was not happy with pixel-art degradation for sprites farther from camera when low resolution was used.

And finally, here’s what happens when we try low resolution WITH perspective scaling. This is why I abandoned this approach - pixel-art sprites get deformed as characters move away from camera. Works for Doom-style games, but not what I wanted for my game.

I’m pretty happy with the first version! While it only works for specific camera setups (like my room-based layout), it gives exactly the retro feel I was aiming for.