Potpourri: melange, pastiche, hodgepodge, mishmash, patchwork. Use it to add some craziness to an image.
No trigger, but you may experiment with:
potpourri
halo
dress
horror (theme)
blue theme
abstract background
surreal
floating hair
midriff
leaf
feathers
scenery
no humans
wrinkled skin
texture surface details
It would be a shame to use a chaos engine without some chaos: "In chaos, find your muse; in disorder, discover your masterpiece."