Wennerberg was skilled at drawing and painting smiling women. Moreover, most of the images I've found on the Web have highly natural-looking subjects. This is even though female makeup and grooming fashions, particularly in the 1920s and 30s, required some other illustrators' results to seem odd to us.
Beyond his ability to portray, Wennerberg had a very nice painterly style.
Wennerberg illustrated a lot of carnival and costume ball scenes.
This might be a magazine illustration from around 1910.
A very nicely painted sketch with just enough detail to sell the scene.
She is waiting, but for whom or what, I can't say.
I don't have the date for this, but between 1910 and 1915 shouldn't be far off.
Three paintings, each featuring a Tänzerin.
For once, a woman who is not smiling. Because of the war?
I think this is especially well done. The guy could really paint.