Does a picture need a frame?
When I look at art work of the 20th Century, and before, in galleries most of the work is framed. I think that most people expect a picture to be framed once it has been completed. The first image below shows work exhibited at Woodhayes Gallery, Honiton, Devon in 2016. Most of the works were acrylic on canvas and were unframed. The question remains... would they have looked better with frames? The jury is out on this!
For me it depends on the picture and, also, what the artist had in mind.
For the sake of the argument the second picture 'Rise', an acrylic on canvas is framed.
Liz Cleves at Woodhayes Gallery in 2016
'Rise' acrylic on canvas - Liz Cleves .... framed 2019