Which to me is cliche...

Honestly when I saw that, the first thing that went through my mind was... are those souls? Ghosts? People? Are they natural or supernatural entities? Are they physical? Visible? So confusing... but OMGHORROR!

I wasn't a fan of that imagery. It felt cheap/easy from a storytelling/visual standpoint, and very much not Halo.
If it's physical, keep it physical. If it's supernatural, tease and hint, but don't display ghosts or souls unless the context is mental imagery/dreamstate/etc - otherwise that makes them physical.

I was fine with the Composer being the process of somehow converting physical and mental pathways into a virtualized/digital container of some sort. If you want to go with souls, then sure, they're tied to those intangible 'entities'. But... red anguished ghosts somehow trapped in the walls of a large hallway leading into what can only be teased as some sort of hellish nightmare? ... #smh #nothalo

Everything else? Cool! (to various degrees; not sure how I feel about black team yet)