The author of the two colour woodcuts in this post was Carl Theodor Thiemann (1881-1966). Thiemann produced paintings, etchings, and lithographs as well as woodcuts, but it is almost entirely as a woodcut artist that he is remembered. My two are typical in the way they luxuriate in the idea of light and form reflected off water.
Carl Thiemann, Schwan
Carl Thiemann, Bach im Winter
Carl Thiemann (sometimes known as Karl Thiemann) was born in Karlovy Vary (Karlsbad), in Western Bohemia. He studied at the Prague Academy, and also under Franz Thiele. He died in Deutenhofen in Bavaria.