ARTINFO - Nick Walker's "Moona Lisa" (2006) sold for a record Ł54,000 ($106,660) at Bonhams's "Urban Art" auction in February.

Nick Walker's "Moona Lisa" (2006) sold for a record Ł54,000 ($106,660) at Bonhams's

"Urban Art" auction in February.

Courtesy Bonhams