Depictions of the picts by the picts themselves show what looks like an indo-european/Iranian profile, though it's open to interpretation as the hilarious Classify Alexander thread shows. In any case, it's worth noting, the pointed beards, and distinct noses, are very similar to scythian art. There are other similarities though; both the scythes and the picts have been described as red haired by classical sources, which was the reason for starting this thread. I question whether these classical descriptions are legitimate portraits of the phenotypes of the people, colourful descriptions by the original authors, or deceptive mistranslations of the original Latin. Granted, a few descriptions of the people, legitimate or not, is not enough to classify an entire ethnic group as a certain type of 'europid' but it's interesting nonetheless.
Pictish Warriors
Scythian Warriors
Pict with drinking horn