One of the great advantages of the digital workflow is the ability to experiment without a huge time overhead. Digital offers so much flexibility and so many tools, that how to proceed is often a lesser problem than how to stop. Still, the more one experiments, the more one learns, and the more one learns, the greater the number of options.
Take the light bulb on the right as an example: it's completely different than what I started out to create. Originally, I thought I would mask a photo of a bulb and just do some lighting effect with the filament; instead, I used only the metal base, and created the rest using techniques I've acquired over time, mixed with a little experimenting. I skewed off the original path and ended up with something better.
It has always been my belief that it is sometimes preferable to let go of preconceived ideas and just flow with the creative process. And, that flow comes from the having the skill to execute ideas fluidly, and that skill stems from constant practice, which is facilitated by experimentation, which, in turn, is made practical through the digital workflow.