You mean the carpet I’m using? The floorboard’s texture I’m using? I can share it with you. I have a site with multiple textures like walls, carpet, glass textures… Take a look at it:
It has like a lot of textures you can try implementing into your game for more realism. You need to enable Material Service. If you want any more help on how to put textures into your game, contact me.
About the perfect contrast between the doors and the hallways, you need to ensure the doors are placed in a way that doesn’t seem too apparent. For example, try adding a huge, linear corridor with a door right into the end.
You can try adding doors placed non-sensically:
For example, this image. The door is inside a room full of things, but it is located weirdly, right? Or, for example, doors at the ends of walls like this one:
The door is located at the end of a wall. Do NOT put a lot of doors into a single hallway, or else it will remove the liminal feeling.
Additionally, if you haven’t enabled Future Lighting, enable it now. Try not to use a point light, and use a surface/spot light pointing up to illuminate the ceiling.
Decrease the light’s general range, and make it fluctuate between them. Make the light’s part glow up just a little bit. Also, could you sent your lighting settings? Including the effects like blur and color correction?
Thank you in advance.