Walker has been the subject of solo and two-person exhibitions at WIELS in Brussels, Belgium; Le Magasin in Grenoble, France; Modern Art Oxford in Oxford, United Kingdom; and Museum De Hallen, Haarlem in The Netherlands.
Walker's artwork has been displayed in solo and two-person exhibitions at various prominent art institutions around the world, including WIELS in Brussels, Belgium; Le Magasin in Grenoble, France; Modern Art Oxford in Oxford, United Kingdom; and Museum De Hallen, Haarlem in The Netherlands.