The yellow and black colouring of this poster screams danger which hints toward the graphic violence of the film. A second hint to the film's violence is the large katana sword which is very clearly placed on the poster alongside the occasional burst of blood red lettering.The bright yellow also suggests that this is an unusual film thus giving it a USP in its own quirkiness. 

It is stated very clearly that this is a Quentin Tarantino film just bellow the title which  is important because Tarantino films are effectively a brand in their own right and the fact that he directed it would on its own draw in an audience. The title is relatively ambiguous in the sense that it doesn't give away much of the film aside from the fact that a man named Bill has it coming. 

Uma Thurman's "The Bride" is positioned centrally showing that she is the main protagonist of the film, this is a drawing point for the film as you don't get that many female protagonists within the action genre. It also shows off that Uma Thurman, a well known actress, is in the film and would attract her fans.