Tried painting with grayscale, i think i prefer shading like this than using different layers. 
 
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Commissions are OPEN. Just send me a DM if you're interested.
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Follow me on twitter, i post small arts and sketches there.
https://twitter.com/Arc_Yama
My TOS
https://docs.google.com/document/d/1x5PvZ-OXkHp-9aXj3prB7-dWoHKgE_ism-ArePPl76k/edit?usp=sharing