Gibson's sculptures and wall reliefs are typically constructed in painted wood, sometimes incorporating found objects. They explore themes related to landscape, archaeology and visual memory.
Vertical Landscape has a complex composition which incorporates references to the sea, with forms suggesting harbours and boats, as well as a sunny inland landscape. The built environment is also evoked with an architecturally framed distant vista in the upper segment. The location is not specific, it invites a response from the viewer's own store of recollected images and memories.