Now we're gonna do a bit of light shading on the face. I'm showing you some of the tones I use (not all because I forgot, hehe). That reddish tone is what I'm using to shade because warmer tones usually look better than dark browns/black which can look a bit muddy, but you can use almost anything depending on the look you want. (In the past I've used magenta, teal, burgundy, lavender, and orange.)
For shading I use the pencil tool and lower the opacity to make it easier to blend, then go over each spot a couple times until it looks right. Just make sure you're clear on where your "light source" is, so where would the light hit your character.
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Here's what it looks like once it's done.
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Here is a marked off guide of where the shadinw was done. Each stroke of the brush starts att he point where it should be darkest.
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Now, using a darker tone (this time a dark red) I keep the opacity down and go over the spots where it should be darker. Any corner, crease or spot where the "light" wouldn't hit the face.
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