I wanted to cosplay either Garnet or Pearl from Steven Universe, and eventually decided on Garnet because I felt I could do a more accurate Garnet than Pearl.
I used much of the same techniques as I used for MewTwo. Almost everything is mattress-foam and fabric. The visor is Plexiglas and a reflective silver film (the same kind of film I used for Cutter Slade). The Gauntlets are EVA- and CraftFoam (I wrote a tutorial for them here)