I going to create a scene from Close Encounters of the Third Kind -The Devils tower mother ship scene .
Created a basic spaceship in Carrara.
Added basic details
made a colorful glow shader for a test.
Exported to 3DCoat and did a retopo and UV unwrap. baked the glow texture in Carrara.
Used Unity add on World Composer to get the landscape at Devils tower. Not high resolution so exported to 3Dcoat to sculpt a bit.
Retopo and then paint some parts.
I have made a first sketchfab scene with just these 2 objects . more to add and will have to paint the space ship to look ore like he movie one and bake lightmaps for it and landscape and add more props!