Quite a nice tutorial, thanks for the shoutout to my PEQ tutorial :)
I liked the pictures, and I thought that it made sense.
I do have a little bit of constructive criticism/questions, though...
1. We're EQing the master in this tutorial, right? So, rather than saying "here's an issue spot, lets lower it," wouldn't it be more wise to lower the instruments themselves that are clashing so you avoid losing valuable information from other synths/samples?
2. I didn't quite understand how you knew that the peak at 850 Hz was a false peak. That could use a touch more explanation.
3. This is just personal opinion, but not sure if that part about bass was needed :P - people don't simply "gain" the bass, there's a specific level of bass that most people are trying to obtain: a genre-specific level. Just because it's higher than what you normally produce/listen to doesn't mean that it's too much. Also, some people might have just missed the mark a little bit ;)
Aside from that, it's quite a useful tutorial. Keep it up!