I give complete permission for you to use my custom-made faces, I simply don't have experience with nodes and those technical cocepts you're asking for.I tagged you in one of the threads by @tokke001 . If you can help with the templates we can have better results in Converter tool Output.
For example, if we are using your version of Ansu fati model as a reference in the template folder of the Converter Tool, the output will be as finer as your model for any conversion.
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The community also need your help in creating a template model for converting custom made FIFA 16 to 14(or other older versions). Since FIFA 16 is where a lot of new custom made faces done, especially made by @Lagwagon93.
May be @tokke001 can give more information about it.
The supports you guys give towards the older gen FIFA game community is invaluable and we are thankful for that.