The seemingly diverse themes and motifs in Petrović’s paintings are indicative of various art movements. Regardless of the fact that the paintings seem closest to Impressionism and abstract painting of the mid-20th century, the most significant general impression is that of associations to the spirit of the 21st century and the digital era in visual arts. Oftentimes, the paintings are only in two colors. They exude serenity and the forms depicted are simple. The paintings are difficult to classify as belonging to a certain stylistic whole due to the easily perceivable imagination, color schemes, and curved lines running against unusual backgrounds. Petrović tries to induce feelings of comfort in the viewer as they gaze at the paintings depicting green meadows, still life, or melds of two abstract surfaces of harmonious colors.