Each drawing took around 30-40 mins. It took 2 and half hours to drawing in total.
Ambiguous:
Stable:
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The OpenLab is an open-source, digital platform designed to support teaching and learning at City Tech (New York City College of Technology), and to promote student and faculty engagement in the intellectual and social life of the college community.
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I like your drawing, because it is simple. Unlike mine which is complex, it can make the person think clearly for only one big image. For mine, you have to think deeply to understand the meaning of each drawing.