For Piccinelli the wall as an element of architecture; represents a formal geometric visual structure on which appear the traces left by man (which is similar to the research of the painter Antoni Tàpies) It is the informal part and random that expresses the mind; the heart; time and emotion. We can affirm that Piccinelli; in this series; revisits the codes of Street Art within his research towards minimalist abstraction."But; for Scully; the influence of Mondrian; Matisse and Rothko; artists who attached great importance to the touch and constantly reworked their canvases; was decisive."Tony Godfrey; “Painting Today” Edition Phaïdon; 2010.