The Look-For photo is a close-up showing any detail on your bike that makes it easy to pick out quickly in a crowd, just like a ribbon tied onto your black suitcase that makes identification a snap.
Do you have special bar tape or stickers? Does your bike have a custom seat?
If you don't have anything easily identifiable, consider adding something like stickers or replacing the bar tape. You can always add photos of it later by clicking on your bike in Your Garage.