It was marked as Public Domain or CC0 and is free to use. To verify, go to the source and check the information there.
This image was acquired from
Keywords from Image Description:
Renoir The Two Sisters On the Terrace. Artwork de Auf der Terrasse en On the Terrasse fr Sur la terrasse oil canvas cm Art Institute of Chicago This is much more accurate version in terms of colour and tonality than the adjusted version listed below artic edu Creator PierreAuguste Renoir Other versions File PierreAuguste
Page 2017 Free-images.com. All images are Public Domain