For week 21, I decided to practice sketching techniques from the Pencil Sketching book I bought not too long ago. Instead of using a pencil, I decided to use gel pens. I just reproduced some of the drawings that are in the book. It's one thing to learn from the theories, it's another to learn from practice and learning from practice is much more effective. I'm hoping this will help improve my sketching technique when I'm out and about urban sketching.