It’s hard enough to photograph a compelling portrait, now imagine trying to make one using only a few cans of spray paint. UK-based artist David Walker does just that and the results are absolutely stunning. Not only does he brilliantly capture the subtlety and nuance of his subjects’ faces (which he culls from found photography, old magazines and even the web), but his frenetic color work and style perfectly compliments the street art that has obviously inspired him.