Most of the light was from the map, and usage of 1 lamp. I mostly tried Illu's Lamp tutorial, despite it still need some improvement and after-editing.
I recommend using "ent_setname X/Y" and "ent_fire X setlightingorigin Y". After that, just ligth 'em up with lamps :3 Like here [link] (Not sure if I sent you that one already )
"Jesus! Look at that gear!"
Like here [link] (Not sure if I sent you that one already