I'm really enjoying this BPS class and the book that came with it is such an inspiration.
With this simple doodle I drew the swirls in pencil first then dotted over the top with a soufle pen. If you haven't come across these brilliant pens you are really missing out. They create a raised texture on the page and even write well on dark.
I've been practising swirls and threw in a flower which I copied from the book cover (we are supposed to be covering flowers this week - but I'm a week behind).