[3] Zastavaska started her creative activity by writing the lyrics of children's songs.

[1] In collaboration with the composer and vocalist Liliia Ostapenko, she created songs performed by children's groups from Odesa, Kyiv and New York.

[1] In 2015, Zastavska represented Ukraine at the Vilnius International book fair and had the honour of joining Valerii Zhovtenko, Ukraine's ambassador to Lithuania, in presenting Mascot of Love in Lithuanian to the President of Lithuania, Dalia Grybauskaitė.

[3] She has translated and promoted the publication of a book by the notable Estonian writer, journalist and film director Imbi Paju, Hidden Memories.

The book was also represented in the international program of the Art Arsenal on May 25, 2019, in Kyiv.