Is the Taoist hand-painted spell shop on Taobao a lie?

The key depends on the master, whether the master practices or not.

See which sect this master belongs to. Whether this Sect exists or not.

It is the hand-painted symbol made by this master himself (hanging a sheep's head for fear of encountering a dog meat seller).

Is it painted with vermilion (some are painted in red ink, wrapped up, you can't see it outside).