I'm thinking of using corks for this. Cut and painted corks. Try It Today: DIY, Art Ideas for Bold, Textured Walls! This is definitely an undertaking of a DIY, but this Dowel wall art via Crazinessensues would certainly deliver some texture to your wall.
High Street is a private residence located in Melbourne, Victoria, Australia. It was designed in 2014 by Alta Architecture. High Street by Alta Architecture: "Located at the quiet eastern suburb of Melbourne, Australia.