From the series of house sketching, I did this sketch that took me about an hour to finish.
Enjoy.
Art supplies:
Marker paper A3 size Canson XL
Linework: Sharpie pen XF felt tip and paper mate Flair M
Copic Markers Toner grey 1, 3, 5, 7, Cool grey 3, 5, 7, earth tones E55, E35, E57, E59, Warm grey 3, 5,
Touch markers blue grey 3, 5, 7, 9
Highlights: sharpie white extra fine point
Black color pencil