Size for the feed you're posting to
Aspect ratio is strategy, not an afterthought. Vertical 4:5 posts occupy noticeably more screen than 1:1 squares in most feeds, which directly buys you more attention per impression. Stories and short-form video are 9:16 full-bleed, while link-preview cards on X and LinkedIn render around 16:9. Generate each concept at the ratio it will actually live in — cropping a square into a vertical after the fact throws away composition.
The batching workflow
Work in themes, not one-offs. Pick your week's content pillars — say, product, educational, and personality — then generate 5–10 candidates per pillar in one session using flux-schnell, which is built for exactly this kind of fast, cheap volume. Keep the keepers, schedule them, and re-render only your hero post of the week on a higher-quality model.
Consistency trick: reuse the same aesthetic preset — GOLDEN HOUR, PASTEL DREAM, NEON NOIR — across a whole week's batch. Your grid instantly reads as intentional, which is what makes profile visitors hit follow.
Video: win the first frame
Short-form video is decided in the first second, before your caption is read and before sound is on. Generate clips where the very first frame already contains motion or visual tension — a CRASH ZOOM toward a subject, confetti mid-fall, neon flickering on. Nidhogg's video presets are tuned for exactly these percussive openings; a 5-second clip with a strong first frame outperforms a 30-second slow build almost every time.