London urban sketch watercolour

life in canada,ink and watercolour,sketch,travel sketching,urban sketch watercolour,urban sketching,urban sketching for beginners,urban sketching tutorial,写生,水彩,绘画过程,街景水彩,街景素描,街景素描水彩,鋼筆水彩素描,钢笔淡彩,风景,风景画素描,art journal,watercolor painting,watercolor painting tutorial,watercolor painting for beginners,art journal tutorials