In a formal analysis, art evaluators focus only on or the of the art work.

In a formal analysis, art evaluators focus only on the artist's style or the disguised notation of the art work.

Explanation:

A formal analysis of a work of art is focused on the artist's style or on the disguised notation of the work of art.

When starting this analysis, the evaluators first define the origin of this work and if its origin has any hidden or literal meaning in its artist representation. The factors that made the artist develop that work will also be evaluated. Finally, the elements of the work and the artistic style of its creator will be evaluated.