The chieftain is shown wearing mail and a fantastic helmet (based on the helmet found at and archaeological site near Zaragosa). He is about to throw a saunion, an all iron javelin similar to Roman pilum.
Ancient Celts - Celtic warriors often painted their bodies with a blue die from a plant called "Woad". The woad would be painted in different shapes, such as animal. They were very fierce fighters, and the Romans feared them.