See, this is exactly what people who say it can't be done should be paying attention to. They are too busy stating NWN cannot and will not come close to modern videogame graphics to actually notice, let alone make, something like this. Just take anything Six has done. His tilesets are top quality, ingenious, and always challenging Neverwinter Nights' aesthetic limits. Then, notice the many authors who have reworked his ideas and resources to reach beyond. We have a plethora of content converted from The Witcher and NWN2, and lots of custom projects clearly inspired by them and Icewind Dale, Baldur's Gate, Dragon Age, The Elder Scrolls, etc.
Astonishing work, Zwerkules. Now, give us a crypts tileset reskin that looks like that and I will name my first born after you.