I understand how to match the Hanja for Spring, Summer, Autumn, and Winter, but

Slurp! Don't worry, the Four Gentlemen tiles can be matched even if their pictures are different, as long as they're the same flower type, heh. Since they're bonus tiles, the rule is that you can cleverly remove them as long as the type is the same. I'm kindly informing you, so now, meticulously clear the board, hmm!

Even if the pictures are different, you can match items within similar categories. You can do it that way.