That was positively the most crapy painted picts/generic migration period barbarians I have seen! I did not know the picts were cloned from one single person, nor dad they had strictly enforced uniforms...
I love their shields, perfect for germanic warriors of the period. All in all, they would all work well as rank and file germanoic warriors of the later empire and migration period.
And the shields... So sweet shield bosses! Makes my heart grow warm and fuzzy. But if thee paingter had done a modicum study of the period, for example read the excellent source book from old WAB, Fall of the West. The romans used the shield designs to identify their units and it seem very likely the germanic tribes did the same. That germanic shields were decorated and painted is shown by finds from the danish warbooty sacrifices, but we do not have enough finds to see if there were consistent designs for specific warbands. It seems likely, however, since the warbooty sacrifices indicate that the armies of northern Europe were organized along roman lines, even if the equipment for each warrior did not match a roman soldier. Shield, spears and some sidearm was standard, unless you were an archr. Warriors belts were germanic verions of roman soldier belts, and in some cases you have roman equipöment that seem to belong to veterans who have serving in the roman army. Fact is you even have the kit of a roman officiial with the duty of keeping check of the border and gather intelligence from inside Germania Libera. He seems to have ended up on the losing side in a local war.