Potential C Cheung Painting found in Brisbane | Gwulo: Old Hong Kong

Potential C Cheung Painting found in Brisbane

Potential C Cheung Painting found in Brisbane

I don't know what I'm talking about, but the general background layer of the water and sky is physically quite flat and smooth with less visible brushwork but the details and additional bits like the cliffs and bridge etc. are visibly raised and seem to have been painted by hand? If that helps at all?