[1] The artist primarily paints large-scale works[2] most of which focus on his own life and often explore themes of home, identity and relationships.
[3] The Irish Museum of Modern Art classified his work as "expansive domestic scenes where realism meets the uncanny, and the familiar broaches the magical.
[4] The artist participated in Culture Night 2020 as part of an Arts Council showcase of paintings that had been recently added to its collection.
[4][3] In 2023, Fullam was commissioned by the Arts Committee of the Law Library at the King's Inns, Dublin to paint the six former Taoisigh (plural of Taoiseach) who trained at the establishment.
[16] Fullam's show Fancy Situations opened at Dublin's Kevin Kavanagh Gallery on 6 June 2024.
[6] Fullam has noted that he can spend weeks just on graph paper before he starts painting a large-scale work.
[6] Fullam remembers wanting to become a painter after his art teacher introduced him to artists such as Francis Bacon, Lucian Freud and David Hockney in school.