Zhehulska has no formal artistic education. Her development as an artist was shaped under the influence of Lviv masters such as Oleksandr Aksinin, Valerii Demianishyn, and Estonian graphic artist Tõnis Vint. Consequently, her professional formation took place entirely in Lviv. She works exclusively in graphics, using pencil, brush, paint, compass, and rulers to create purely geometric, ornamental, and meditative op-art compositions. Initially, she worked in a black-and-white palette, but over time her works became infused with colors — violet, blue, gray, and olive — adding a “lunar” shimmer and optical effects.
Since the 1980s, Zhehulska has actively participated in republican, all-Union, and international exhibitions, including the first alternative exhibitions in the USSR, held in Riga, Moscow, and St. Petersburg, as well as the project Soviet Art of the 1990s.
In 2019, her gouache and silkscreen works were acquired by the Mystetskyi Arsenal, enriching its collection of contemporary Ukrainian art.
As a representative of the Lviv underground, Halyna Zhehulska boldly combined form, color, and optical effects at the intersection of graphics and meditative art. Her works synthesize optical illusions, mathematical restraint, and emotional presence, reflecting the spirit of Ukraine’s aesthetic transformation in the 1980s–1990s.