My ATC for a Christmas swap called “Blue Christmas” last year.  Underneath the lovely Victorian image I used a laser cut snowflake paper that I colored with GlimmerMists, added snowflake border edges punched from glitter paper, and then more glitter on her cape hood and shoulders.  I had fun but I’m afraid it answers the question:  “Can you really ever have too much glitter?” with a yes.  I’ve been working on using “subtle” as a more appropriate mantra ever since.