A woman takes photos of a koala sculpture during the Hello Koalas Sculpture Trail at Royal Botanic Garden in Sydney, Australia, Oct. 30, 2019. The trail encompasses over 20 one-meter-high koala sculptures, hand-painted by Australian artists. (Photos: Xinhua)

Photo taken on Oct. 30, 2019 shows two koala sculptures displayed at the Hello Koalas Sculpture Trail at Royal Botanic Garden in Sydney, Australia. The trail encompasses over 20 one-meter-high koala sculptures, hand-painted by Australian artists.

People visit the Hello Koalas Sculpture Trail at Royal Botanic Garden in Sydney, Australia, Oct. 30, 2019. The trail encompasses over 20 one-meter-high koala sculptures, hand-painted by Australian artists.

People visit the Hello Koalas Sculpture Trail at Royal Botanic Garden in Sydney, Australia, Oct. 30, 2019. The trail encompasses over 20 one-meter-high koala sculptures, hand-painted by Australian artists.

Combo photo taken on Oct. 30, 2019 shows koala sculptures displayed at the Hello Koalas Sculpture Trail at Royal Botanic Garden in Sydney, Australia. The trail encompasses over 20 one-meter-high koala sculptures, hand-painted by Australian artists.

Children visit the Hello Koalas Sculpture Trail at Royal Botanic Garden in Sydney, Australia, Oct. 30, 2019. The trail encompasses over 20 one-meter-high koala sculptures, hand-painted by Australian artists.

Combo photo taken on Oct. 30, 2019 shows koala sculptures displayed at the Hello Koalas Sculpture Trail at Royal Botanic Garden in Sydney, Australia. The trail encompasses over 20 one-meter-high koala sculptures, hand-painted by Australian artists.