Wow those gems behind the curtain are really creepy and disturbing O_O, ready to point the finger at Ruby and Blue Diamond is scary while Blue Pearl seems detached, you caught well their personalities and charcteristics! Poor Ruby... I like that red light almost like an ominous sign of her future death, fortunately it won't happen and the fog adds atmosphere kept in suspence, pretty interesting that in this scene Sapphire and Ruby's roles are inverted because Sapphire is the most agitated (note the lifted arm like she is about to beg for forgiveness) while Ruby seems like ti accept her fate (the rigid and static pose, of course she is frightened).