Two ways to add artwork:

1. Direct blockchain links:

• IPFS: ipfs://... or https://ipfs.io/ipfs/...
• Arweave: ar://... or https://arweave.net/...
• OpenSea: .../assets/... (supports AVIF format)
• Other decentralized storage URLs

2. From marketplaces (OpenSea, SuperRare, etc.):

1. Right-click the artwork
2. Choose "Save image as..." or "Copy image address"
3. If saved: Upload using the file picker above
4. If copied: Paste the URL here

💡 Tip: For OpenSea artworks, both AVIF and standard image formats are supported