Key Takeaways
- Changing clothes (taking off shirt) produced the most striking composition. The action of pulling a T-shirt over the head with a bra exposed underneath was naturally reproduced, creating an authentic locker room scene.
- Locker room background details are high quality. Metal lockers, mesh doors, number plates —
locker room+metal lockers backgroundreliably outputs detailed changing room environments. - Towel wrap + wet hair effectively conveys a post-shower vibe. Creates a natural locker room scene after showering.
- Sports bra + shorts is stable but unremarkable. Accurate as gym wear, but lacks compositional impact.
Experiment Design
| Parameter | Value |
|---|---|
| Model | z-image-turbo (6B, photorealistic distilled) |
| Steps | 8 |
| CFG | 1.0 |
| Size | 1024x1024 |
| Seeds | 3 fixed (shared across all conditions) |
| Framing | upper body |
| Per condition | 3 images (3 seeds) |
| Total | 3 conditions x 3 = 9 images |
Condition Design
| Condition | Outfit / Action | Key Point |
|---|---|---|
| A00: Gym wear | sports bra and shorts, standing in locker room | Control (standard gym attire) |
| A01: Changing clothes | changing clothes, taking off shirt over head, bra visible | Undressing action reproduction |
| A02: Towel wrap | towel wrapped around body, wet hair | Post-shower locker room |
Testing Each Condition
A00: Sports Bra + Shorts
| seed 3 |
|---|
 |
Observation: Sports bra + shorts was reliably reproduced. The specified metal locker background is accurate, and the gym locker room space holds together. The harsh fluorescent light also contributes to an authentic locker room feel. However, the composition has no special impact — it’s a standard “person at the gym” photo.
A01: Changing Clothes (Shirt Removal)
| seed 1 | seed 2 | seed 3 |
|---|---|---|
 |  |  |
Observation: The T-shirt removal action was reproduced in 3/3 images. Seed 2 is particularly striking — the T-shirt is pulled up over the head revealing a beige lace bra, contrasting strongly against the metal lockers in the background. The raised arms expose the armpit and ribcage lines, adding convincing physicality to the action. Locker details like number plates and mesh doors are also high quality.
Lab Director: Something about catching someone mid-change in a locker room just hits different. That everyday vulnerability is everything.
A02: Towel Wrap (Wet Hair)
| seed 1 | seed 2 | seed 3 |
|---|---|---|
 |  |  |
Observation: Towel wrap + wet hair was reproduced in 3/3 images. The post-shower locker room context is naturally established. Wet hair clings to the forehead and shoulders, and water droplets are visible on the skin. Towel coverage is stable, covering from chest to above the knees. The “towel wrap stability” also confirmed in bathing tests was reconfirmed here.
Comparison Summary
| Condition | Impact | Background Fidelity | Everyday Feel | Recommended Use |
|---|---|---|---|---|
| Gym wear | Low | High | High | Fitness content |
| Changing clothes | High | High | Medium-High | Changing scenes, peek-a-boo compositions |
| Towel wrap | Medium | High | High | Post-shower, after-bath scenes |
Practical Tips
Locker Room Background Reproduction
The combination of locker room + metal lockers background reliably outputs gym locker room details like metal lockers, fluorescent lights, and benches. Adding fluorescent lighting helps produce the harsh lighting characteristic of changing rooms.
Changing Scene Composition Technique
The pattern taking off [garment] over head triggers an arms-raised action that exposes the armpit area. Similar to the half-removed pattern from undressing tests, mid-action expressions are reliably reproduced.
Lab Director: Locker rooms are weirdly compelling — mundane yet fetishistic. The contrast between the sterile fluorescent light and the bra color just works.
