There is no postwork to the figures in the promotional ads.
Hilights are *not* painted on to the iris textures. See the "lighting comparison" for examples of how lighting effects the RDNA Eyez and the mesmerEYEZed textures.
It is only necessary to have any one of the mesmerEYEZed iris texture packs in order to use this construction kit. MAT poses in both the construction kit and the iris texture packs are color coded to match each specific pack. For example, volume 1 thumbnails sit on a blue background in the mermereyezed pose folder and coordinating blue backgrounds are used in the mersmereyezed construction pose folder so that you can easily pick and choose from textures from the packs which you own.