Conversation so far:
What are picts of Celtic art?
The Picts were a confederation of Celtic language-speaking peoples.
Were the picts of Celtic art in Scotland?
The Picts shared modern Scotland with a zone of Irish cultural influence on the west coast, including Iona, and the Anglo-Saxon kingdom of Northumbria to the south.
What other art did the picts of Celtic art produce?
Insular styles heavily influenced Pictish art, with interlace prominent in both metalwork and stones.

Question: Are there any significant works?
Self-contained rewrite: Are there any significant works by the picts of Celtic art?