limited palette must helps artists to work better and make true colours, which colours are to be used you'll get to know in this video
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https://www.youtube.com/watch?v=uiODF2iyqyw
Aadil Mehmood artist is answering a question by Sristi saighal , she asked how to make art as career, this question was asked in comments in his last video
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https://www.youtube.com/watch?v=tM-3353L1CE