When making a model page, western naming is preferred, followed by the model maker's name.
Here are examples:
The only time you can use eastern order is if you are referring to the actual Vocaloid software, not the character; ie Hatsune Miku.
Also, if the model has a theme, then the theme goes after the name.
If the character is a derivative, it should be regarded as its own character and not a theme.
In this case, "Miku Hatsune Hazure" would not make sense. Miku Hazure is her own character.
Hope this clears some things up!