I'm in Ander's Blues 2 course, and have discovered myself putting in a number of the licks from the early career phase of your Clapton Artist Study. All of the Clapton study is good (fun!) stuff but I always find it interesting when things seem to "cross pollinate".
You put an pretty damn accurate finger on Eric's work as he's progressed through the years.
I'm about to jump into your song unit on Rare Earth's "Celebrate". Awesome tune. My son's (he's 30 now) eyes bugged out first time he heard Rare Earth.