Cognitive research points towards cultural differences in the way people perceive and express scenes. Whereas people from Western cultures focus more on focal objects, those from East Asia have been shown to focus on the surrounding context. This paper examines whether these cultural differences are expressed in complex multimodal media such as comics. We compared annotated panels across comics from six countries to examine how backgrounds convey contextual information of scenes in explicit or implicit ways. Compared to Western comics from the United States and Spain, East Asian comics from Japan and China expressed the context of scenes more implicitly. In addition, Nigerian comics moderately emulated American comics in background use, while Russian comics emulated Japanese manga, consistent with their visual styles. The six countries grouped together based on whether they employed more explicit strategies such as detailed, depicted backgrounds, or implicit strategies such as leaving the background empty. These cultural differences in background use can be attributed to both cognitive patterns of attention and comics' graphic styles. Altogether, this study provides support for cultural differences in attention manifesting in visual narratives, and elucidates how spatial relationships are depicted in visual narratives across cultures.