Understanding the basics of "DEPTH" will definitively level up your 3d game and your capacity of creating realistic designs in Inkscape.

Key topics to check out!

• The texture,
• It's Material
• Lighting,
• Shadows, 
• Depth of field,

https://ankharastudios.com/wp-content/uploads/2022/10/gold.png

Using reference images can be one great point to start!

Thanks for sharing. The gold is amazing and the depth of field. The only problem I see is the banding in the background 💯 🤯

A perspective view of the background style I seek to achieve...

Following the orientation of the "Light source"

Turned on the "Use dithering" in the Preferences - Rendering tab... Yet couldn't get a smooth gradient blend mode..

Or maybe getting it wrong somewhere