A contemporary Impressionist, he uses bright colors infused with light, together with a graceful sense of line to create serene still lifes and landscapes. His subject matter is drawn primarily from his immediate surroundings in Westchester County, New York and Cape Cod.

Sitki has developed a personal philosophy that emphasizes a bright view of life, seeking to fill his life with all that is pure, clean and filled with light. He rediscovered the art of Monet, Seurat, Sargent and Hassam and found himself looking more intently at light and how color's component parts are broken down by light.

Beginning with an undercoat of yellow on each canvas to bring out the light in all his colors, Sitki uses his skill as a precise draftsman to paint directly on the canvas. He makes no preparatory drawings, working instead from his own photographs and adding and subtracting details to create the basic composition. Building and layering color and texture, he places each brushstroke and each fleck of color next to each other to create vibrant tones.

One of Sitki's dimensional works of art was selected as part of the Katonah Museum Artist Association's juried exhibition at the Sculpture Barn in New Fairfield, Connecticut and was on display in the winter of 2008.