'Economics my dear'
they must have been paid to advertise LDF for the year 2014. Notice some ad with a previous shot, they just incorporate them to an event, a promotion and such.
We saw individual pictures, then they were just put together for the same token. LDF has to constantly promote the company, the stores, the locations. They come up with brochures, posters, print ads to attract shoppers.
It would be nice if they set schedules and do photoshoots to their current celebrities each and together or in groups... Imagine members of EXO, PSH, LMH, JGS, Eru, and so on.... Expensive production...
that is what I think
Shinhye's photo 'endorses' the K - Star Festival. There were other posters promoting this festival without her picture in it too.