Works of art that express a passionate/manic tone might depict characters in states of ecstatic celebration or characters that are overly enthusiastic. Beyond representation, stylistic elements such as dashes and swirls of bright varied colors, erratic edges, and limited or no areas of visual rest might lend a passionate/manic feeling.
An artist might impart a passionate/manic tone to a piece due to his or her own emotional state, or the artist might choose to evoke this tone as a reflection of the characters being portrayed. A passionate/manic tone might also be adopted to suit a piece meant for a setting or purpose that demands an expression of exuberance.
Featured: The Garden of Earthly Delights by Hieronymus Bosch.