Imagine a girl seated on a yoga ball, her posture relaxed yet balanced

Imagine a girl seated on a yoga ball, her posture relaxed yet balanced. She's sitting with her back straight. The yoga ball itself is slightly compressed under her weight, but it still retains its round shape, supporting her in a gentle, stable manner. The background could be a simple, serene space, maybe a minimalistic room with soft lighting, adding a calm ambiance to the scene. The overall feeling of the image is peaceful and focused, as she embodies both relaxation and strength. legs fall down with yoga outift