Can't get the POSE (hand model) to work correctly - What colors are used?

[3dcinetv]

Hello, I'm testing the POSE (hand model) in Preprocessing Openpose_hand, using a realistic photo. When Stable Diffusion generates the image, I can see some of the fingers occluded to represent the hand grabing the steering wheel of a car (see this>>) The Preprocesing Openpose_hand seems to only work with shiloette perfectly front view hand poses or with slight distortion. But if I generate the Pose model (in 3d) with a slight perspective, I get deformed hands and extra bodies. What are the correct colors for the fingers? How do you know when to occlude fingers and parts of the body? Is the Openpose_hand Preprocessing working correctly? I'm getting errors even with realistic pictures and no perspective. Please help. Thanks.