
Approximate Measurements
Artwork Panel: 124.4cm x 67.1cm ≈ 49" x 26½"
Silk/Brocade Border: 144.4cm x 77.1cm ≈ 56¾" x 30¼"
This is the translation title written in Chinese on this painting.
This is done by 

(Zhang Xue Wan) of Sichuan Province (Southern China).
If you are curious, these horses are done in the Tang Dynasty (618-907 A.D.) style, when fat horses and fat women, and anything else fat was in fashion.
The Tang Dynasty was really the "dynasty of the horse", as more than any other time, horses were an important part of society. In fact, one's wealth was strictly determined by the number of horses one owned. Good horsemanship was also a revered trait. Horses were also an important element of the Tang army, with officers and Chinese knights riding horses into battle.