What was changed on the obverse and reverse sides of banknotes in denomination of 20 Lari and why?

On the obverse side of the banknote publishing-house of the newspaper “Iveria”, and phaeton were added to emphasize the content, Ilia's different portrait was used with improved relief and volume, which allows for easier identification of the denomination. On the reverse side the Coat of arms of Georgia (as an obligatory attribute for currency) was added and also, different panorama of old Tbilisi was used.