Lora created to render a specific pose, subject on back with a very arched back.

Example prompt (PonyXL/Illustrious):

beautiful, detailed, masterpiece, best quality, absurdres, 8k, HDR , very aesthetic, intricate details,adult woman, sexy, 1girl, looking at viewer,
hrbodybridge, on back, lying, arched back,
dark green cropped t-shirt, thong, indoors, coffee table, on floor, arms up, underboob, armpits, dutch angle, red lips, teasing, makeup, eyeliner, adorable eyes, eyelashes, eyeshadow, red lips,
simple background, blurry background, auburn hair, short hair, hair between eyes, blue eyes, from front,
<lora:hrbodybridge:1>

Example prompt (Krea2):

A high quality modern pin-up drawing of a beautiful, slim woman. She has black hair slicked back into a neat bun.  Image from the side, she is kneeling, on her back, doing a backbodybridge, she is facing away.  She is toned and fit with large perky breasts.  She is wearing tight latex thigh boots, garter straps attaching them to latex hot pants.  Her top is a front laced latex vest.  She has a very arched back and athletic body, she is fit with a narrow waist.  She is in a photo studio.  She has smooth flawless skin, and delicate fingers with red nail polish.  She is a sexy adult woman in her 20s. The style of the image is a sleek modern graphic novel, with clean lines and smooth textures. 

Have fun creating!