/ic/ - Artwork/Critique

Okay, I don't really know where else to ask this (Q&A seems to be more for technical questions), but how the heck am I supposed to be drawing something that doesn't take place in a generic daytime setting?

More specifically I'm trying to figure out how to paint something that takes place at sunset but couldn't figure out what kind of color scheme I'm supposed to use for lighting/shadows. It's straightforward with regular sunlight (warm lighting, cool shadows), but I just don't understand how to apply that to other scenarios. What exactly am I missing here?

I keep searching for examples but it just looks like they took a regular lighting situation and slapped on a multiply filter (pic related). Is it really that simple? Am I overthinking this?