Here's the final image of my project.
One thing the videos can't cover is the true nature of trial and error. Throughout the process I would tweak and tweak again every part of my process from concept to final render. I would change my mind, a lot, and learn from it.
You may notice the dimensions are a little different, tightened up, proportions hopefully a little more pleasing. I cover some of this in Unit 5 - Post Tweaks.
The main thing is, this is all a process of experimentation and that doesn't end at the initial design phase.