Koichi Yairi's Ghost Drawing 4 merges acrylic and spray paint techniques to create a composition of spectral forms and gestural marks. The mixed media approach produces layers of visual complexity and textural variation across the canvas surface. This 2021 work suggests themes of presence and absence through ethereal imagery and experimental technique. The combination of controlled acrylic application with spontaneous spray paint creates visual tension and intrigue. The title evokes concepts of memory, invisibility, and artistic revelation.