Hi hi :) Here is how I made the hot chocolate piece: a base sketch in 4H pencil. A layer (or two, or three) of watercolor pencils (which are first “drawn” then blended and mashed about with water and a stiff brush). Brief period of agony and despair, feelings that I’ve destroyed the drawing. Coffee, snack, cat-cuddling/chasing. Resignation. Determination to persevere. Finally top layers with soft-core colored pencil, gouache and paint pen. Drawing is done. Surprise/satisfaction/something like that. This is generally how I make all of my pieces - with varying amounts of the despair and cat-cuddling.