I really enjoyed the tutorial. Found it very informative, especially the point about references and copy-pasting/cutting corners to save time. I've long been expecting a tutorial from an artist like you and it's always great to learn from your infinite experience.
BTW, microphone seems perfectly fine, as long as I can discern your speech, and I always can, even though English isn't my first language.
P.S. In the second video, when you moved the microphone from you mouth, it became close to impossible to hear you. You're too quiet and muffled.