Over the course of the last few months I have, together with @Wyattrox03, been revamping the resource pack for Paths of the Dead in preparation for the revamp of the POTD build project.
In this resource pack version, plenty of new blocks have been added, including:
A completely new ghost block system
Featuring 4 types of ghost bricks, as well as smooth ghost stone, and ghost cobblestone + 2 fading ghost blocks, all having stairs, slabs, vertical slabs, and thin slabs.
Multiple types of pillars and architraves, all with offset and/or half versions, as well as fading variations of all these blocks.
Ghost railings, balustrades, windows, chains, etc.
A bone block with stairs, slabs, vertical slabs, thin slabs, vertical thin slabs and 3/4 slabs
Featuring 4 different types of skeletons
3 different types of bones
5 different types of skulls
A bone/skull pillar
New Dark Stone Architraves, pillars, structural blocks, and natural stones
Plenty of blocks and items from the Human, Mordor and Dwarven Resource packs