Light up glass blocks, stained glass doors, Maddgoth has a sense of style, that's for sure.
Assets for this map include some new doors and windows (stained glass doors and crystal barred windows), the octobass, and a few different marble tables and tubs.
The zip file below includes the updated DOTMM Dungeondraft asset pack, the raw asset png images, and the Dungeondraft map files. There is 3 versions of the map files - lights on and off, and a "no color block" version if you don't like my interpretation of the "embedded coloured blocks in the walls".