Hey Mr. Kouhi! Lovely tutorial. Found you via http://www.reddit.com/r/photoshoptutorials
As an almost completely new student to Photoshop, there were a few things I found challenging to follow. For example, at 1:07
of your video, you could mention that the button you clicked is the "Create new fill or Adjustment Layer" or just say the "Half-filled circle button" or something like that. Another slight issue I ran into was understanding what a "Zero strength brush" is. I am pretty sure it is the Hardness setting. That is what I used at least.
Other than those points, I followed it easily enough. Great project overall and you have my subscription!