This article addresses visual literacy as a crucial competence for fostering intercultural literacy and intercultural dialogue. Visual literacy has been defined as a combination of skills needed to interpret the meaning of images, latent reasons behind their making and their impact on audiences. Individuals need to develop such skills to critically read the 'vocabulary' (content) and 'grammar' (composition) of images they are constantly flooded with to fully understand and appreciate the underlying meaning of visual representations of their own culture and other cultures, as well as the people belonging to different cultural groups. The Council of Europe's "Autobiography of Intercultural Encounters through Visual Media" (AIEVM) has been designed to promote interculturality through the reflection on the other, as portrayed in visuals. By analysing AIEVMs produced by 18 adult learners of English in two contexts -- featuring explicit intercultural training prior to AIEVM completion vs. its application without such previous input -- the present study examines the impact of pertinent training in visual and intercultural competence development. The data suggest heightened levels of metacognition and critical thinking in the former context. Results for both groups also disclose the development of a powerful sense of self-discovery and empathy toward alterity, induced by the commonalities detected between the respondents themselves and the depicted. Overall, implementing the AIEVM seems to narrow the gap between the intercultural awareness discerned in both contexts, yet the dissimilar depth of the narratives produced corroborates the value of prior intercultural learning. The article concludes with a critical overview of the potential of the AIEVM, comprising prospective courses of action to supplement this instrument to sharpen users' visual literacy and boost deeper intercultural reflection.