There are many styles of rap, but all of them are songs, and all songs start with a beat. Rhythm is a very big component in songs, especially rap. Pick an instrument, it can be as simple as a piano playing notes repeatedly, or it can be much more complex, it is easy to get the music first before the lyrics so you don’t have to modify the words of they don’t fit
2 Elements:
Color is being used in cooperation with Line to make colors "pop" more. Along with this, it provides and organized, yet visually appealing aesthetic to the art piece.
Color in particular, is what separates the work into sections that draw the viewer's eyes in, due to the contrast choices by the artist.
While Line, physically separates the colors, but provides the attractive composition.
(I would answer principles too, but I don't have the time currently;; Hopefully this helps though.)
