At first glance, the colorful balloons look almost identical from row to row. The challenge is to scan the grid carefully and find the one balloon with a tiny visual difference.
A good strategy is to compare one color column at a time instead of looking at the entire picture at once.
Look closely at the balloon shapes, highlights, and tied ends. One of them breaks the repeating pattern.
If you found it quickly, you have a sharp eye for small details.

