Crosshatching was used to build up the shadows. It's probably my favourite drawing technique. Works best with pen and ink. This is the cover image for one of my children's picture books.
So I've been looking into other programs tailored to illustrators and I came across Krita. It's free, easy to use and I LOVE the intuitive pen pressure and natural smoothness
Needing to get out of the house, I walked down the street to the antique shops that are right around the corner from my house and did some urban sketching.