Final Fantasy XV: Windows Edition Error.

Going straight to the point, I installed the base game ( 48GB ) repack from the website but when I launched it, the character models looked like the final fantasy XV pocket edition models. I'm not sure what exactly I'm missing but then I saw HD texture add-on and a 4k texture add-on. Which do I install or do I install both? Or is that not the problem.

Some steady help would be really appreciated