About the hand details of the full-body model

[Dong09]

Hello, when I use your full-body model for rendering, I found that when my fingers touch, the effect is a certain gap with the imagination, and it will only be better when the whole finger moves together, the result is shown in the figure below,. I would like to ask 2 questions:

1. Is this a limitation of the model;
2. Whether this problem can be solved through training

[mks0601]

if you have more training data, you can train on it for better results