for the diversity maybe add like wavy/curly hair and the inner monologue saying more than just 'blush' whenever 'we' feel flushed/embarrassed/flirty. Curls are a feature in every identity and for dark skin wouldn't it be pointless for it to be mentioned in descriptive scenes?
Your other responses though about the plot? Oohh im invested you said there's a spectrum like are certains characters going to be sweet then some a barbarian/closer to themselves on screen?