Have you tried making this into a mod that can be enabled and disabled? You should be able to mod the queen's mesh blueprint file and change the lines for AlbedoName, SpecularName, etc., to point to your files.
So your mod would include the dds files in "/mods/[your mod name]/Queen", and the new blueprint at "/mods/[your mod name]/hook/characters/Queen/queen_mesh.bp". And the path for AlbedoName in the bp file would be changed to "/mods/[your mod name]/Queen/queen_albedo.dds". Etc. for the flower and specular/normal dds files when you add them.
This way people won't risk deleting the original skins if they forget to back up, and you won't have to move files around to switch skins.
I think it should still be considered a UI mod, because you're just changing the blueprint file, but I'm not sure about that.