Official Zentangle® Pattern - Amaze, Cogwheel, Courant, Isochor & Wadical

I followed THIS YouTube video by Barbara Langston CZT where she shows how to draw "Amaze", "Cogwheel", "Courant", "Isochor" and "Wadical" by Zentangle. Barbara is doing a video series featuring some of the official Zentangle patterns that have never been published including the one's on today's tile. I have used some of these tangles before and Barbara's video confirmed that I was drawing them correctly. However, I wasn't sure how to draw "Cogwheel" or "Isochor" even though I had seen very vague examples of them online. I'm looking forward to learning how to draw more of the mysterious CZT-only tangles by watching Barbara's video series.