Absolutely loved painting in this style. Used Sennelier Ink (olive green), Rohrer & klinger Antiktusche (Krapprot) ink for the background. Here's what I started with:

The reference photo:

Photo by Cheng Shi Song from Pexels: https://www.pexels.com/photo/beautiful-plum-blossoms-in-nanjing-spring-31165982/