These kissing pictures you found are all the works of the same person. Painters can create according to their own preferences, and paint as they like. There is no need to entangle this issue. However, the official setting of mirror twins does not clearly explain the relationship between them, which is generally considered to be a sister-brother relationship. Of course, they are just characters created for sound software and do not exist objectively. As for whether Hatsune Hatsune Hatsune is Hatsune Hatsune, the official has not released relevant information, and personally, this question has no substantive significance. Some people think Gemini is good together, while others have different views. Therefore, you don't have to be bound by other people's ideas, and you can find your own satisfactory answer by imagining it yourself.