Lock a consistent illustration style

I want a consistent illustration style for [brand/use].

Write me a reusable style suffix I can paste onto any subject prompt so results stay on-brand. Define: medium, color palette (name 3-4 colors), lighting, mood, level of detail, and what to avoid. Then show 3 example prompts using it for different subjects: [subject A], [subject B], [subject C]. Format each ready to paste.

PRODUCTION TARGET
Create this as a polished image in Midjourney. Preserve the central idea, then make the following production decisions explicit before generating:

1. Subject and action: identify the exact subject, pose or movement, expression, wardrobe, props, and the single most important visual action.
2. Environment: define location, time of day, weather or atmosphere, foreground, background, and depth cues.
3. Composition: specify shot size, camera height, lens character, framing, negative space, and visual hierarchy.
4. Lighting and color: use TECH4SSD's restrained black, white, and lime palette only when branding is relevant. Otherwise describe a coherent palette, key light, fill, rim light, contrast, and texture.
5. Realism and continuity: maintain anatomically correct subjects, consistent identity, stable objects, believable materials, and clean text-free surfaces unless text is requested.
6. Output: produce one final generation prompt optimized for Midjourney. Include aspect ratio and motion or camera instructions when supported.

Avoid random decorative elements, distorted hands or faces, unreadable typography, duplicate objects, overprocessed skin, and visual details that conflict with the requested outcome.