To me it doesn't look like something that would be part of the livestock of a butterfly farm.
To me it could just be a Small White where something has 'gone wrong' during the pupation/emergence, giving the underside of the wings this intense colour . The wings have also not expanded properly, hinting at an emergence issue, as with the black spots at the end if the viens (genetic problem or leakage when explanding?).
Quite stunning regardless.
Martin