It's difficult to make the woman appear tiny. If you say she's tiny or small or minuscule, you get a plastic looking fake character. The trick that works for me is to focus on a gigantic object first. The AI appears to set the scale based on that object. So here are three examples:
First off I'll use the prompt below:
85mm telephoto overhead view of an athletic 23-year-old Caucasian woman with short black hair and darkly tanned legs wearing a black sleeveless bodysuit with white trim, black knee-high lace-up boots, solid black elbow-length opera gloves, a black collar, and a red and white belt with a large silver star on the buckle. She is covered in a sheen of moisture, and is standing on a gigantic black laboratory desktop that fills the entire background of the scene. On the surface of the desk, in the background, is a gigantic pen that fills most of the background of the scene, and several gigantic paper clips surrounded by enormous drops of water. She is looking around at the desktop in confusion.
Here's one of the pictures it gives me:
Next I'll change only a few words, replacing "is a gigantic pen that fills most of the background of the scene" to "a gigantic water bottle"...
85mm telephoto overhead view of an athletic 23-year-old Caucasian woman with short black hair and darkly tanned legs wearing a black sleeveless bodysuit with white trim, black knee-high lace-up boots, solid black elbow-length opera gloves, a black collar, and a red and white belt with a large silver star on the buckle. She is covered in a sheen of moisture, and is standing on a gigantic black laboratory desktop that fills the entire background of the scene. On the surface of the desk, in the background, is a gigantic water bottle and several paper clips surrounded by enormous drops of water. She is looking around at the desktop in confusion.
Finally I'll change "a gigantic water bottle" to "three gigantic paper clips so big they almost fill the scene"...
85mm telephoto overhead view of an athletic 23-year-old Caucasian woman with short black hair and darkly tanned legs wearing a black sleeveless bodysuit with white trim, black knee-high lace-up boots, solid black elbow-length opera gloves, a black collar, and a red and white belt with a large silver star on the buckle. She is covered in a sheen of moisture, and is standing on a gigantic black laboratory desktop that fills the entire background of the scene. On the surface of the desk, in the background, are three gigantic paper clips so big they almost fill the scene, surrounded by enormous drops of water. She is looking around at the desktop in confusion.
These were all done in portrait mode. Notice I never once mention the size of the woman, even in passing. She is described using ordinary words that don't mention scale. As soon as you start doing that, you start getting fake looking images. The trick is to have the AI zoom in on the objects around her. Of course that means if you want to do something like have her running across a blank floor, it's not going to work. You can either add a giant object nearby and then crop it out or have an AI tool remove it, or use Photoshop to put her into such a scene. The AI is great but can't do everything quite yet.