I remember from my childhood watching some kind of educational euro-style animation about a boy named PocoPoco (something like that, it was Spanish-dubbed) who had curly green hair that was moving all the time, his skin was all white (as in #FFFFFF) and had a monkey tail.
He looked a bit like a lion but with human features.
The cartoon style was mostly flat.
A female narrator would describe his adventures.
The timeframe would be sometime between 1998-2004 and the show look a pinch older than those times.