How to get a realistic room in unity?

Hi everyone,
i create a dining room in blender and i have to export it to unity.
When i import the whole room and i set all the materials and textures i get a room not so realistic.
Do you know if there is a simple way to get better results?
Thanks so much

Maybe post a screenshot and provide some details about exactly what you DON’T like in your scene?

Put in lights, and lightmap it.