I enjoy having two models to work with (Or even three!!). It keeps me on my toes!! And having a new model is always a challenge. I remember when I drew Lexy first, I really struggled with her long limbs and how tall she is. This time, Cindy was the new model. And she's tall too, but very different from Lexy. So every time is a new learning opportunity for me.
My favourites are always the drawings I do at the end of the evening, generally with a Fude pen and watercolour in my Stillman & Birn sketchbook.