He looks quite impressive to me and, if he were my theme, I'd certainly buy him and probably multiples to re-use parts with other figures.
That fur cloak looks very good and his hair style is new to me and his beard has new details I think, for example, the curve of the moustache.
As for colours, who knows what colours the Gauls, Celts etc had? Maybe Playmobil has done some research on this. Certainly, accepted ideas about the levels of culture in pre-Roman times amongst what the Romans called the barbarians are having to be revised in the light of new archaeological finds. In early socities, colour meant high status, so why not blue boots?
