I never sketch a complete concept, instead each composition is an assemblage of doodles. Because of this bad habit, lighting and color is often decided while building the scene: hardly ideal and an unheard luxury of time spent in any industry using three dimensional modeling software.
For example, although the failed render was close to my initial intent, I’d grown accustomed to the more monochromatic hues in my first render. So back to the rendering screen to redo the lighting rig. The result is moodier.