The multiverse, as used in several interpretations of QM, is an (near-)infinite dimensional space. Eleven layers of 3D space would simply be a 4D space.
This is not any model of physics I'm familiar with, and the last sentence simply doesn't make sense. Particles are synonymous with the shape of spacetime AFAIK.
Energy doesn't exist at this level of abstraction. You should actually be describing what energy emerges from.
A very strange thing where the laws of physics were wildly different.
However, there was no singularity, because there was no moment at the beginning of time.
The singularity is the bit that's wrong, and possibly because the situation that it arises in simply does not happen. The physical evidence for black holes is still sketchy, and it's entirely possible that something about them means that the singularity in the middle simply does not arise for some reason.
You were originally referring to relativistic reference frames, which are not ordered. All (steady speed) reference frames are equally valid.