happy bengali new year, pohela boishakh, suvo noboborsho, bengali traditional folk . colorful background, mask of tiger moti

april art craft asian background bangla year bangladesh bengal folk bengali festival card celebration concept creative cultural culture design dhaka elements day motif greeting happy mandala mask owl rickshaw paint social media shirt template tiger tradition west noboborsho boishakh traditional pohela suvo colorful moti motifs vector object use greetings