What’s the story behind drawing on 50 lari banknote?

30 seconds on Google:

>This 50 Georgian lari banknote is a standard banknote issued by the National Bank of Georgia. It is a green banknote that is dated 2020, bears the signature of Koba Gvenetadze, and measures 137 mm x 68 mm. Its obverse side shows a green-to-gold SPARK feature, a view of the cave monastery in Vardzia, an 8th-century bas-relief from the Pitareti Virgin Mari Monastery, and a portrait of King Tamar. Its reverse side depicts the astrological sign of Sagittarius from a Georgian miniature manuscript of the 7th century and the national coat of arms. Security features include an iridescent stripe, a holographic stripe with King Tamar, 50, lari symbol, griffin, and the map of Georgia, a denomination registration device, a magenta-to-green windowed security thread with a demetalized 50 and Georgian text, and a watermark of King Tamar with an electrotype 50 and the lari symbol.

so, different notes have different designs to distinguish them from each other