I had a lot of fun with this, it was great to slowly let go of my clutches, one of one. I switched drawing tool between the first exercise (non-dominant hand, I used ink and calligraphy dip pen) and the rest (a fine liner) - mostly because doing a single continuous line with a dip pen is impossible (for me anyway, I like to put too many details in).
Here are the first two exercises:
Here are the 3rd and 4th exercises:
If you have any feedback I would love to hear it, thank you :)