I have a couple of minor bugs to report. There are some decorations resembling a globe on a short pillar. In the screenshots, these are appear to be have the same rainbow effect as the textures and other decorations, but when I play this mod with the latest version of GZDoom, the globes and their pillars are white. Also when I start playing, I get a lot of error messages reading "portal on floor/ceiling of sector xxxx is sloped and will be disabled", though the mod still seems to be fully playable.
I would like to say while I'm here that this mod has an amazing dream-like feel to it which I love. This is a really masterfully crafted piece of work.