1. Different value of smothness and metallic (have no result)
2. Very bright light. It helps a little bit but other objects in scene become white
3. Exposition to higher value. Same result as 2
This is how it looks in render

This is in real life

This is in unity3d
https://drive.google.com/file/d/1gqf929Q4m1ZBRlEE11hhlJ7Ynvh5eXPK/view?usp=sharing