the answer is Carefree
Thoughtful.
this describes the mood depicted in this painting because the character appears to be doing something as knitting, which takes time and patience, which is thoughtful of them to go out of their way to do so.
Answer:
do you perhaps have discord?
It adds volume to the painting and makes it look 3D, without it the painting would look flat and cartoony.
Gustav Mahler would be my answer. Strauss was also composing during the late 19th and early 20th but Mahler created more of a fusion between the two.