Most likely harmony, the degree to which a person appreciates the harmony depends on various things such as: their level of musical training, their ear, and again just their opinion.<span />
The visual elements of art consist of:
colors, form, line, shape, space and texture.
If we go more in depth in an elements, such as colours, it would be its harmony, contrast etc. which would affect the audience’s visual experience on the artwork.
Hope it helps!
