Painting: Augustiner Bräu and Mülln Abbey in Salzburg
Artist: Edward Theodore Compton (1849–1921)
Medium: Watercolor and opaque white on paper, 24,5 x 35,5 cm
Inscription: signed E. T. Compton
Date: by 1921
What I love about this image:
This is a cityscape, a genre which Compton was not famous for painting. The central building is a brewery, and in background rises the steeple of an Augustinian abbey. The day is pleasant, not too bright or warm, but comfortable. People are out without coats, so perhaps it was painted on one of those slightly overcast days in June.
The muted colors and gray skies make this a familiar kind of day to me, as June in the Pacific Northwest is frequently overcast, but pleasant.
Compton is known for his vast mountain-scapes, but this painting shows us that he found the architecture and community of his adopted country interesting too.
Judging by the dress of the walkers, I would say this was painted just after WWI. The skirts are not full and are hemmed well-above the ankle, which was not a pre-WWI style at all. The blouses are simple, with no lace or ruffles; the clothes of women who worked both at home and at jobs. After the war, cloth was expensive, and fashions changed accordingly.
About the Artist, Via Wikipedia:
Edward Theodore Compton, usually referred to as E. T. Compton, (29 July 1849 – 22 March 1921) was an English-born, German artist, illustrator, and mountain climber. He is well known for his paintings and drawings of alpine scenery, and as a mountaineer made 300 major ascents including no fewer than 27 first ascents.
Compton was born in Stoke Newington in London, the son of Theodore Compton, an art-loving insurance agent, and grew up in a deeply religious Quaker household. He attended various art schools, including, for a time, the Royal Academy in London, but otherwise he was mainly self-taught in art.
In 1867, wanting the best education for their artistically-talented son, and due to the high cost of schooling in England, the family decided to emigrate to Germany settling in Darmstadt. The city at that time was the seat of the Grand Duchy of Hesse under Grand Duke Ludwig III, and a community of artists had sprung up there. Entries in Compton’s diary show that both he and his father were art teachers – Alice, the Princess of Hesse numbered amongst Edward’s students.
Initially painting in the English romantic tradition, Compton later developed a more realistic representation of nature, being guided by his true artistic ideas while retaining topographical accuracy. Even his early watercolors show the great importance of brightness and light and his work is also remarkable for its portrayal of the elements such as water and air, including ascending mist and fog. He can be regarded as an impressionist.
Although Compton never had much formal art education and did not found a school, he influenced artists such as Ernst Platz and Karl Arnold as well as his son Edward Harrison Compton and daughter Dora Compton. 
Credits and Attributions:
 Wikipedia contributors, “Edward Theodore Compton,” Wikipedia, The Free Encyclopedia, https://en.wikipedia.org/w/index.php?title=Edward_Theodore_Compton&oldid=1021678754 (accessed September 30, 2021).
Image courtesy of: Wikimedia Commons contributors, “File:Edward Theodor Compton Augustiner Bräu und Kloster Mülln.jpg,” Wikimedia Commons, the free media repository, https://commons.wikimedia.org/w/index.php?title=File:Edward_Theodor_Compton_Augustiner_Br%C3%A4u_und_Kloster_M%C3%BClln.jpg&oldid=331463362 (accessed September 30, 2021).