1. A method of making a relief image on a flexographic print plate, the method comprising: imagewise exposing a mask including an imageable material disposed on a mask substrate to form an imaged mask having a mask image in the imageable material disposed on the mask substrate, the mask image including mask image areas each having a highlight value; laminating the imaged mask to a front surface of a flexographic printing plate precursor; and exposing selected areas of the flexographic printing plate precursor to an imagewise addressable curing radiation via a back surface of the flexographic printing plate precursor based on the highlight values of corresponding mask image areas of the mask image.