Her non-representational works hold strong associations with our visual experience of the world, for example, emulating the experience of changing light at dawn or the happy patchwork of intense summer colours in natural landscapes. Her work also references decorative applied and folk arts such as patchwork, marquetry and set painting, in its use of pattern, which Ostapenko gained knowledge about during her early studies. Ideas of collage are important in her work with some being reminiscent of cut-paper modernist works and others having a layered appearance, which creates depth. She plays with both symmetry and variation within her compositions.

Ostapenko graduated with a Master of Arts from National Academy of Fine Arts and Architecture in Kyiv. Before moving to France she exhibited regularly in Ukraine and had two solo exhibitions in Tbilisi, Georgia. Her work is held within private collections in the US, UK, Singapore, Denmark, France, Georgia and Ukraine and this year she is exhibiting within Art Innsbruck in July.