The gallery holds over 300 icons and church utensils, some of which have not been displayed in public. The icons exposed are mainly from the late 18th and early 19th century, painted by iconographers who worked in the southeastern region of Bulgaria.

The emphasis of the exhibition are the two icons whose authorship has been determined – the icon of Alexander Popgeorgiev - St. 40 Martyrs, 1867 (IV niche) and the icon of Nicolas Odrinchanin - St. John the Baptist (VII niche).

Alexander Popgeorgiev was born around 1800. According to available data he was educated in Kiev - in the Theological Academy where he learned iconography. His icons are in churches in Sliven, Yambol, Straldzha, Zimnitsa. There are traces of his work also in Varna and Shumen.
Besides iconographic works, there are some of secular character. Such an example is the portrait of Radi Kolesov, which is exposed in the permanent exhibition of the Art Gallery "George Papazov" - Yambol.
Alexander Popgeorgiev died in 1878.

Nicolas Odrinchanin is the brightest representative of the Edirne Painting School - one of the best artists-iconographers of the Bulgarian revival. Born around 1810. Died in Plovdiv in 1866.  His overall work displays excellent knowledge of Orthodox iconography with a strong influence of western art. Being a master of colorful fresh solutions, he used warm colors in his palette - pink and orange, which are typical also for other representatives of the Edirne school.