I need 1000+ 15 second exercise GIF/videos for an app

I need a designer that is confident in creating hyper-realistic animated exercise videos. We would provide all of the technical prompts and what we are looking for (see below), but we would need an AI animation specialist to create the videos. Our understanding of AI is limited, so our results are not quite what we are looking for.
I have attached 3 renditions we created that all highlight promise, but a lack of knowledge in how to create better prompts to Sora 2. All of them have errors.
An example prompt:
Side Plank
“Side view of an athletic Black woman in her mid-20s holding a side plank. Straight line from head to heels, hips lifted, elbow under shoulder, feet stacked. Highlight obliques in red, glutes and transverse abdominis in orange, shoulders in yellow. Studio lighting, pure white background. Render as a realistic 3D human model with highlighted muscles glowing in red (primary), orange (secondary), and yellow (tertiary).”
Bird Dog
“Side angle of an athletic white man in his early 30s performing a bird dog. Opposite arm and leg extended straight, flat back, hips square. Highlight spinal erectors and glutes in red, shoulders and obliques in orange, hamstrings in yellow. Studio lighting, pure white background. Render as a realistic 3D human model with highlighted muscles glowing in red, orange, and yellow.”
Copenhagen Plank
“Side view of an athletic Asian woman in her early 20s performing a Copenhagen plank. Top inner thigh rests on a bench, elbow under shoulder, hips lifted. Highlight adductors and obliques in red, glutes and transverse abdominis in orange, shoulders in yellow. Studio lighting, pure white background. Render as a realistic 3D human model with highlighted muscles glowing in red, orange, and yellow.”