Painting a Colour Map

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I have faded it to B&W and adjusted the levels and made a quick brush, you can get it here

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painted some marks here and there, well every where really

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Notice I only want to keep the details like the areas in the photo on the left. I will be gently be erasing most of the areas that I want smooth

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Here's the colour map with those bump details over laid but only faintly so you can just see them.

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If the skin colour seams a little to pale just add another darker skin tone and multiply it with the existing layers

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erasing again some lighter areas

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I painted some deeper red tones for the eye lid

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I quickly made this weird brush and just added some marks here and there that you can faintly see below

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next up I've made some simple veins your hardly see them, remember to add some Gaussian blur to them once your happy with them.

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I used Darken on the veins and turned the opacity right down

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I made another quick brush which is below and with it i added some more details

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I added a few dark spots and that's it I guess. Some more skin tones could be added if you wanted to make it darker. Also maybe add some freckles if you wanted, or tone down all the spots

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If this tut seemed a bit rushed, sorry it was