Role-based handoff: define where environment artist will be used and what stakeholder signoff must prove there.
Preserve the untouched environment artist asset and record tested artifact before changing geometry, materials, textures, hierarchy, or metadata for stakeholder signoff.
For environment artist stakeholder signoff, Keep the brief, before-and-after asset, acceptance note, next owner, and due decision. Product, marketplace, regional, and compliance decisions still require the responsible specialist.