artwork

Ms Prempeh said, after completing the artwork, it felt "weird" to not know who the subject was.

And when it came to artwork, how do you hang pictures on aluminum walls?

One visitor who noticed the artwork asked a member of staff about it, but said the museum worker "admitted they had no idea about the piece or when it arrived".

However, a bitter dispute over the control of the prized artworks has meant they are not at the museum, something that appeared to have angered the protesters.

The same goes for Erica Goldstein, CEO of the Blank Canvas Co., which sells artwork, frames and stationery.