This took 42 minutes 37.6 seconds. I didn't draw a single blockshade. I just imported an SVG file that a program made. The result is a detailed blockshade. LBormi might very well be a great artist. This is just to prove a point.
Original project: LBormi Image: Duckduckgo (didn't notice actual site) Background removal: https://www.remove.bg Vector conversion: https://www.vectorizer.io