Photo submission reference from Callie Faye Lips.
If you'd like a photo to be drawn and included in the book, be sure to get your submissions in, too.
Time: I lost track because of distractions... but probably about 5 hours. Maybe a little longer, maybe a little shorter...
Faber-Castell and Mitsubishi Pencils
Staedtler Kneaded Eraser
Paebo Kneaded Eraser