Lock an opening shot you actually like, then animate it — so a bad first second costs you a still, not a whole render.
Cut in the studio, published from it.
Describe the motion the way you'd brief an editor. Mention a saved character inline, or attach one reference image to anchor the look.
Key-frame first renders a still you can review and tweak with change notes before anything moves. Liked the still but not the motion? Start again from that exact frame at no extra key-frame charge. In a hurry, skip it and render in one pass.
Branded end card, burned-in subtitles, logo overlay, CTA outro. Polish creates a new cut and never costs credits.