"Oamaru's Banksy". . . Mark Sinclair has created a water-blasted mural outside his mother-in-law Rosalie Riches' Eden St property. PHOTO: RUBY HEYWARD

Rosalie Riches is now calling her son-in-law Oamaru’s answer to Banksy.

A few days ago, Mark Sinclair water blasted a mural on the retaining wall of Mrs Riches’ Eden St property.

“He’s a bit of an enthusiastic man,” she said.

The mural had been noticed around the neighbourhood, but Mrs Riches was surprised to hear it had been reported to the Oamaru Mail.

Titled “The Hungry Caterpillar”, it depicted three apples around the retaining wall’s drainage holes.

Mr Sinclair did not have a background in art, but recently retired as an auto-electrician and said he was just helping his mother-in-law.

He came up with the idea while water-blasting her fences to prepare for their repainting.

When he got to the retaining wall, he decided to do something creative for children in the neighbourhood to enjoy.

He started with a smiley face, but got more creative as he went along.

Mrs Riches moved to Oamaru five years ago to be closer to her daughter and two grandchildren, and had moved in across the street from them.