In this sense, linguistic stylistics comes ultimately to rely on extralinguistic criteria. Style is an interface, a contact area between language and its situational, culturally conditioned use. Bennison Gray, Style . Style as the result of the writer's choice between synonymous expressions. Style is detail of meaning or small-scale meaning.
Style is deviance from normal language.
NB that tropes and figures are important style elements but that it is not possible to consider the sum of tropes etc at the style of the text. In Halliday, M.A.K., ed. Stylistically relevant features are to be found on all levels of language and on the level of content. Relevant means that they contribute to some effect. There is also a rhetorical level consisting of tropes and figures of all kinds.