Sometimes, flags can look different depending on which side you look at them from. This is called a flag whose reverse differs from the obverse.
Think of it like this. You're drawing on a piece of paper, and you write your name on one side. But when you flip the paper over, the name looks backwards. This is because the paper is now facing the opposite direction. Flags work the same way.
When you look at a flag from one side, you can see the design or picture that is printed on it. But when you flip the flag over, the design may appear backwards or even completely different.
This can happen for a few reasons. Sometimes, flags are printed on one side only, so the design is only visible from one side. Other times, the flag is purposely designed with different images or colors on each side. This can be for practical reasons, like making it easier to identify which way the flag is flying when it's windy, or for symbolic reasons that represent different aspects or values of the country or organization the flag represents.
In any case, a flag whose reverse differs from the obverse simply means that the design on one side of the flag looks different than the other side. So if you ever see a flag that looks different when you flip it over, don't worry – it's supposed to be that way!