Using fake shadows can help so much with design and composition. Also, light functions are great - but by default don’t do color. In this video, I review the basics: Flickering shadows. But also show how to make “Trick shadows” (where an object casts a DIFFERENT shadow? Enjoy!
https://dev.epicgames.com/community/learning/tutorials/4xKG/unreal-engine-fake-shadows-and-color-light-function