How do somebody achieve realistic lighting On Roblox studio?

[Shadow_dud9 (Shade)]

I been working on Realistic Scenes lately and recently I can up to a road block when It comes to Roblox realistic lighting I was wondering If anybody can help me with figuring out how to create/improve the lighting of these scene?

Abandon Town

Fatal Siege

I’m trying to figure out how to create the best lighting for day/night Time

[oliwieer4 (Mathew)]

PBR Textures are probably the only thing I can suggest, but that may lead to way too realistic designs.

[Shadow_dud9 (Shade)]

Thanks so much I would start looking deeper into PBR Textures