what colour/effect nail polish should i paint my nails with?

ur choices of colours r:
matt postbox red
blood red
metallic shiny red
fluorescent pink
iridescent hot pink
dark purpley black
goth purple
fluorescent blue
metallic azure blue
greeny-blue metallic
cobalt matt blue
fluorescent green
matt emerald green
fluorescent yellow
foil-effect gold
fluorescent orange
metallic tangerine orange
shiny taxi cab black

effects u may choose from:
black crackle effect
white crackle effect
silver glitter crackle effect (makes ur nails look like they have a skin disease, p horrible tbh)
black crocskin effect
dark grey/black magnetic effect (fabulous)

also should i buy some more glitter polishes, i like them but worry they'd look too kiddy on me?