Existing research shows that “pleasant” or “unpleasant” moods can be primed by presenting participants with “pleasant” or “unpleasant” images (Avero & Calvo, 2006), and that stronger priming effects are induced by images as opposed to text (Powell et al., 2015). However, no previous research shows whether or not mood induction effects may differ based on image presentation format. Therefore, the present work aimed to test this hypothesis, by presenting participants (N = 145) with either standalone or grouped images, displaying either positive or negative facial expressions. We found that both facial expression and image presentation had a significant effect on participants’ average ratings of the emotional valence of the images, including a significant interaction effect. However, only facial expression had a significant effect on mood change. We found a slight correlation (r =.298) between image rating and mood change, suggesting that image presentation may have a slight effect on mood change that was unable to be observed in this small-scale study.