No post work was done to the promo images.
Other products used in promotional images:
Characters: Otherworldly Wonders: Equinox by surreality (DAZ3D)
Hair: Fantasy Drops by AlfaseeD (RDNA), Fawn Hair by Propschick (Renderosity) with textures by Spiritfoxy (RDNA)
Poses: DancEmotion 1&2 and Mon Cherie by AerySoul (not available any more), Elegie by Varnayrah (Renderosity), ScaeryTales of Zadacchiel by Varnayrah (RDNA)