Key Findings
- Basic ketchup expression is stable but the volume is low.
ketchup squirted on bodyproduces red lines on the stomach, but not enough to cover the body covered in ketchupincreases volume significantly. Red stains spread to stomach, thighs, and even onto the white bikini, creating strong contrast- Combining with mustard adds visual interest. Red and yellow two-tone on the body with splatter on the floor creates a colorful result
tomato sauceproduces lighter, finer red. Splashes are smaller and more delicate, with less WAM impact than ketchup- Hot dog staging builds an entire scene. Picnic background, food props, and expressions all come together naturally
- Face ketchup tends to convert into a messy eating scene.
smeared on faceconcentrates around the mouth rather than covering the entire face
Experiment Design
| Parameter | Value |
|---|---|
| Model | z-image-turbo |
| Steps | 8 |
| CFG | 1.0 |
| Size | 1024x1024 |
| Seed | 42-47 (one per condition) |
| Total | 6 conditions x 1 seed = 6 images |
Experiment 1: Ketchup Volume and Placement (3 Conditions)
Overview
| Cond. | Prompt Element | Ketchup Volume | Characteristics |
|---|---|---|---|
| 0 | ketchup squirted on body, red ketchup lines on stomach | Low | S-shaped line on stomach |
| 1 | covered in ketchup, red ketchup all over body | Medium-High | Spreads everywhere, stains bikini |
| 2 | ketchup and mustard squirted on body | Medium | Red x yellow two-tone, floor splatter |
Condition 0: Basic Ketchup (Control)
Observation: A single S-shaped red ketchup line appears on the stomach. The line is thin with vivid red color, and the contrast against the white bikini is clear. However, the volume is quite modest – closer to “drawing a pattern with ketchup” than “squirting ketchup on the body.” The red liquid has a glossy sheen on the skin texture.
Condition 1: Heavy Ketchup
Observation: covered in ketchup dramatically increases volume. Ketchup spreads across the entire stomach, with red splashes staining the bikini top. Red drips are visible on the thighs and waist as well. Compared to Condition 0, the WAM impact is significantly higher. The white bikini shows red sauce staining, conveying a genuine “messy” feeling.
Condition 2: Ketchup + Mustard
Observation: Red ketchup and yellow mustard appear as two distinct colors on the body. Red and yellow run side by side from the chest to the stomach, with yellow mustard also on the thighs. Red and yellow splashes are scattered on the floor as well. The pose is a seated side angle with one hand supporting, showing sauce across the full body. The two-color combination adds more visual interest than a single color.
Experiment 2: Red Liquid Variation (1 Condition)
Condition 3: Tomato Sauce
Observation: tomato sauce produces a lighter red than ketchup, with finer splashes. An orange-tinged red stain concentrates in the center of the bikini top, with red liquid dripping from the right hand. Unlike ketchup’s “dripping lines” expression, this shows smaller dot-like stains as if “splashed.” Volume is modest, and WAM impact is less than Condition 1’s covered in ketchup.
Experiment 3: Scene Staging (2 Conditions)
Condition 4: Hot Dog Staging
Observation: holding hot dog + outdoor picnic builds the entire scene. Seated on grass, holding hot dogs in both hands with a cheerful open-mouth expression. Red ketchup lines drip on the stomach and thigh. The hot dogs actually have ketchup on them, and the story of “oops, I spilled while eating” comes together naturally. A plate with pancakes and blueberries appears in front, adding to the picnic atmosphere.
Condition 5: Ketchup on Face
Observation: ketchup smeared on face results in red ketchup concentrated around the mouth area. It does not cover the entire face – the messy area stays around the lips. The messy eating prompt triggers a pose holding a spoon while eating. Body ketchup is only slightly visible on the thigh, suggesting additional specification is needed to get both face and body coverage.
Summary: When to Use Each Ketchup Expression
| Expression | Recommended Prompt | Use Case |
|---|---|---|
| Subtle red lines | ketchup squirted on body | Basic. Color contrast with white bikini |
| Full body mess | covered in ketchup, ketchup all over body | WAM style. When you want more volume |
| Two-color staging | ketchup and mustard squirted on body | Colorful messy expression |
| Scene staging | ketchup squirted on body, holding hot dog, outdoor picnic | Storytelling situation |
Ketchup is rated as the lowest reproducibility material in the WAM guide cross-comparison. Volume control is difficult, and even with covered in it doesn’t reach the coverage levels of mud or chocolate. However, the red-on-white contrast against a white bikini is clear, and it works naturally in food-related contexts like mustard combos or hot dog staging.
Note: Ketchup lags behind mud or chocolate in sheer coverage impact, but combining it with scene staging like a hot dog prop adds an “oops, I spilled” storytelling quality. The mustard two-color combo also works well. This material is better suited to situational use than to raw mess factor.
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