Eduardo Salavisa is a monthly instructor in the year-long program of sketching workshops organized by the Casa-Museu Vieira da Silva (Historic House Museum of artist Vieira da Silva).
His workshops endeavor to map the area around Amoreiras public park. In the february workshop, he challenged us to sketch the same subject three times in a row, using different levels of detail.
The first sketch had to be done in 2 to 3 minutes. The second one in 10 minutes. And the last one in half an hour. Most of the color was added indoors, afterwards.