This was such a fun sketch to do and very quick. I sharpened a woodless pencil and emptied the graphite from the sharpener on to paper. I smudged the paper with my finger then began lifting lights with a kneaded eraser and a paper towel. Then I used the same woodless HB pencil to place the eyes, ears and form a bit of the life preserver and clothing Sadie was wearing. Hope you enjoy it.