Karlowska trained as an artist in Carcow before enrolling at the Academie Julian in Paris in 1896. Karlowska met her husband in Jersey while attending a fellow art students wedding in Jersey, they were married themselves a year later. Both Karlowska and her husband Robert Bevan moved to London where Karlowska would frequently exhibit at the Women’s International Art Club and New English Art Club. Her husband, who was also an artist, would exhibit with her at the Allied Artists’ Association. Sadly, Karlowska, was still ineligible as a woman to exhibit with some of the more prominent groups such as the Fitzroy Street Group. However Karlowska did not let this slow her career and she later founded the London Group and would continue to show with them throughout her life. Her work can now be found in numerous public collections, including; The Fitzwilliam Museum, the Tate and the Nelson Mandela Metropolitan Art Museum among many others.