Woweeee, just listened to your eight minutes of smooth blues. You named yourself wrong after all - Waldi move over, Wie Bluesi is in town! Lovely! Rock solid left hand, and I loved your own created lick. Everything fit so well together and I'm deeply impressed with 8 solid minutes of almost flawless playing.
I only have one little tip, is that okay? I know the lesson probably called for the "humpty dumpty" left hand lick. And, it's an okay lick, nothing wrong with it. But after about a minute I was hoping for a little variation... and it didn't come. The right hand, smooth, suave, lovely... not too many repeats. But the left hand... oh my goodness, 8 minutes of sameness was a little much and in the end I started feeling a little like Mr Tick Tock Crocodile
But honestly, that is only a minor, MINOR nitpick and probably not even fair, for a lesson. But... maybe you can come up with a left hand variation