More ideas from 쪼쪼
http://hbimg.b0.upaiyun.com/e50898960bc168b51a08fd340e7ec3f3bf80a93e85b59-HKcvtz_fw658

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Breasts (Coloring) by yumiya

가슴 채색 / 명암 - The tutorial itself is in japanese and the description is in korean. I know it's a tut on breasts but this can be applied to other exposed body parts as well.