Wall Drawing No. 623 Double asymmetrical pyramids with colour ink washes superimposed

colour ink wash: the background is grey, blue, grey, blue; left pyramid: the apex is left - four sides: 1 - red, blue, blue, red, blue; 2 - yellow, blue, grey, blue; 3 - grey, grey, blue, red, red; 4 - red, grey, red; right pyramid: the apex is centre - four sides: 1 - grey, grey; 2 - grey, red, yellow; 3 - yellow, grey, blue, blue; 4 - grey, blue, red, red