Tashbīh maqlūb reverses the expected roles of subject and model. The item normally used as the standard of excellence is instead compared with the thing being praised, making the latter appear even more perfect.
Ordinarily, a shining face is compared with dawn, a familiar standard of radiance. If dawn is said to resemble that face, the face becomes the standard of brightness.
This reversal creates hyperbolic praise. Mere word order reversal without that shift of evaluative direction is not enough.