For the "Complete" routes, it's the written story content and full graphics that are complete, while the sequence images and some sound effects still need to be added. Part of this strategy also allows for potential changes to the written script (for those routes that still need some further polishing) based on player feedback, without needing to rework the sequence images if they end up being impacted by those script changes. Those placeholder images for the sequence images are going to be addressed in upcoming mini-releases (e.g., V0.5.1, 0.5.2); the plan is to roll those particular updates out for free, we're evaluating the technical/platform logistics of how we can do that.