Colorful frescoes shelter beneath the arches of the porch of the monastery church. They abound within the interior as well. Many were painted by Bulgaria's most famous 19th century artist, Zahari Zograf. The richly painted porch walls deal mostly with cataclysms, saints' martyrdoms and hell visions, with a multitude of bat-winged demons torturing sinners in various ways. There's also a vrachka (some kind of wise woman who is treating patients with herbal remedies), her herbal remedies deposited in her hand by a defecating demon: this seems to be a classical theme in Bulgarian Orthodox church murals (a similar one can be seem in the Troyan monastery in the Balkan range).