YFG Mline – Sepia Mechanical Illustration Plates

Base Model
Flux.2 Klein 9B

Style
A richly illustrated sepia-toned mechanical / retro-futurist plate style with strong portraiture, ornate machinery, gears, pipes, etched backgrounds, and old-print illustration energy. The look feels like a blend of vintage engraved portrait plates, steampunk concept art, retro sci-fi illustration, and antique technical fantasy artwork.

Trigger
Use YFG-Mline to help bring out the intended style more consistently.

Prompting
This LoRA responds best to short prompts.
Simple subject-first prompts tend to work especially well, for example:

• “astronaut portrait”

• “woman in hood”

• “steam train”

• “mechanical centipede”

• “golden armored warrior”

Let the LoRA do the stylistic heavy lifting.

Strength
All sample images were generated at:

• LoRA weight: 1.0

• Guidance: 1.5

• Sampler: er_sde

Since the sample set was built around 1.0, that is the best starting point. From there:

• Lower for more prompt fidelity

• Raise for stronger Mline identity

Adjust to taste depending on how much of the antique-mechanical look you want.

Key Characteristics

• Sepia / Bronze Palette – Warm antique tones dominate most generations.

• Mechanical Ornamentation – Gears, pipes, metal frameworks, engine parts, and etched technical motifs appear often.

• Illustrated Portrait Bias – Especially strong on faces, busts, and centered character portraits.

• Retro-Futurist Subject Matter – Handles astronauts, trains, armored figures, insects, sci-fi machinery, and religious / symbolic imagery very well.

• Plate / Poster Feel – Images often feel like antique illustrated cards, engraved covers, or old-world sci-fi prints.

Prompt Ideas

• “astronaut”

• “woman portrait”

• “steam locomotive”

• “mechanical mushroom”

• “hooded figure”

• “city of the future”

• “armored knight”

• “spaceship hangar”

• “cyborg head”

• “mechanical insect”

You can also use slightly longer prompts if needed but keeping them compact seems to help preserve the core style.

Tips & Tricks

1. Keep prompts short

   • This is probably the biggest tip for this model. It seems to thrive on concise subject descriptions.

2. Use the trigger word

   • Adding YFG-Mline can help reinforce the intended visual identity, especially when prompts are very simple.

3. Good for portraits and machines

   • Faces, armored characters, trains, ships, insects, religious iconography, and industrial scenes all seem to work very well.

4. Lean into the antique vibe

   • Words like “sepia,” “engraving,” “mechanical,” “ornate,” “retro-futurist,” “bronze,” and “illustrated plate” may help when needed.

5. Expect embellishment

   • Even simple prompts may gain gears, decorative linework, industrial backgrounds, or mechanical flourishes.

6. Recommended baseline settings

   • If you want results similar to the sample set, start with:

     • Weight: 1.0

     • Guidance: 1.5

     • Sampler: er_sde

YFG Mline is a highly stylized sepia mechanical illustration LoRA that excels at turning simple prompts into ornate, antique-looking sci-fi / fantasy artwork. It appears especially strong for portraits, machines, symbolic imagery, and retro-futurist scenes. For best results, keep prompts short, start at weight 1.0 / guidance 1.5 / er_sde, and let the model’s visual identity take over.