The wall paintings have been partially preserved on the side walls and in the apse, while smaller fragments were discovered on the vault of the Eastern aisle. In the niche of the Western bay, there is a figure of a ruler with a crown and a model of the church (in Ston) in his hand. It is the most famous fresco which allowed the dating of the church (along with the inscription on the lintel). On the opposite, Southern side, is an image of Saint George, with a sword and a shield in his hand, next to which the inscription (GE)O(R)GIVS is to be found. Above the ruler, only the lower parts of two figures have been preserved, one in a ceremonial robe and the other unclothed and shackled in a humble position. Both are directed towards the West, so it is assumed that it is an image of a sinner and on the Western wall was a scene of the Last Judgment.
Some scholars date the frescoes between 1051 and 1081, while others suggest an earlier date (the first half of the 11th century). In recent times, the frescoes have been associated with close examples of Ottonian book illumination and wall painting or Regensburg illuminations from the end of the 10th century (BamStbib, Msc. Lit. 142, f 4v). Nevertheless, the closest analogies are to be found in Byzantine painting of the first half and/or middle of the 11th century in the Southern Italian region of Apulia (such as in the Church of Santa Marina in Muro Leccese or in the crypt near Grottaglia, Gravina di Riggio).