[3][4] He painted seascapes and ship portraits with versatility allowing him to capture both rivers, such as the Thames, and calm or stormy open waters.
His work was influenced by the Dutch style and stood in some cases as a historical record as well as attractive sea art.
He visited the West Coast of Africa and painted a seascape showing two British slave-ships taking on board enslaved people at Fort Christiansborg.
These included one of Captain James Lawrence of the United States frigate Chesapeake who died while engaged with the British ship Shannon on the first of June 1813.
Webster remarked, "This Print is respectfully dedicated to the British Nation whose philanthropy is such as to esteem the Brave and Virtuous even in an Enemy.
The painting is oil on canvas and was bought from the estate of Frederick Horton who formerly lived at Shrawley Wood House in London.