A guide to recreate oxidised copper

1. Prime the model in Chaos Black
2. Layer on Ahriman Blue (don't worry if it's a little messy)
3. Apply Nihilakh Oxide . This is a thin paint so be careful of splashing (especially if there's other painted models on the worktop)
4. I used an old brush and stippled on Screaming Bell . You could drybrush too. Be random with the stippling to create patches of blue (but not too many)
5. I didn't highlight, but Hashut Copper would be the recommended colour