[3] Davidson started to paint Belfast in his teens, and this theme came to the fore in 2004 when his exhibition No Continuing City was mounted at the Tom Caldwell Gallery.

[9] In December 2015 Davidson was commissioned by Time magazine to paint German Chancellor Angela Merkel, for the cover for its "Person of the Year" issue.

Among these dozen Jerusalemites were Jews, Muslims, Christians, a politician, a monk, a doctor, a peace activist, a hotel worker and a Holocaust survivor.

This exhibition was on show at the Ulster Museum Belfast during 2015, before embarking on a tour which included the Centre Culturel Irlandais in Paris and Dublin Castle.

The Exhibition was on display in Derry at the Nerve Visual Gallery in Ebrington Square in 2018 and at The National Memorial Arboretum in Staffordshire in 2019.