I tried so many times to submit this, finally got it through. (had to shrink it a ton) Anyway, this is what I did for Halloween this year.

Backstory: So Ryau (the guy in the black armor) he use to be a Spartan before becoming a Sangheili with a Forerunner Device. Naki dresses up in his armor to scare young Sangheili on the first Halloween of Sanghelios.