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I use pencil in my initial mockup but I erase the pencil if I am working in pen and ink. I outline my drawing and ink in the details....I am going to do some more kitchen art with black and white with a splash of color. Thank you @ballinconscious!

Good idea, It is good to make a rough draft before using pen. Cool, I find it very interesting the difference between color artwork and B & W artwork. Your welcome ^_^