I've updated the texture pack to now be 8x the vanilla resolution. I've also generated PBR materials for roughly 1/3 of the textures.  
In addition, I've upscaled over 800 sprite frames to 4x the vanilla resolution.

Current Issues:

• Emission maps have not been created so windows will not yet illuminate properly.
• Upscaled sprites seem to have shrunk just slightly from the size of their originals. I'm not sure why, but I will investigate.