I am glad to share with you this image, as pictures of Polish horses (and ideas of what Polish horses were thought to have looked like) from early modern Europe are not very plentiful.
The following text comes from a British publication titled: The Penny cyclopædia of the Society for the Diffusion of Useful Knowledge: v. 1-27, Volume 24, page 178ANTONIO TEMPESTA was a celebrated Italian battle and animal painter and engraver, was born at Florence in 1555. He became the scholar of John Strada or Stradanus, a Fleming, who was settled at Florence in the employ of the grand-duke, and who assisted him in the battles which he painted in the old ducal palace. Tempesta, after painting some years with Strada, whom he surpassed in many respects, visited Rome, and was employed by Gregory XIII., in the Vatican, where he painted, in small figures in fresco, the Translation of the Body of St. Gregory'of Nazianzus, and some other subjects, which acquired him a great reputation among the artists and virtuosi of Rome, and procured him constant occupation from the Roman nobility. He executed several good works for the Cardinal Alessandro Farnese, at his villa at Caprarola, and some at Bassano for the Marquess Giustiniani. Tempesta resided chiefly at Rome, and died there in 1630, aged seventy five.
His reputation rests now almost entirely upon his etchings, although in his time he had a great name also as a painter. Lanzi terms him the first Italian who ever attained distinction in landscape and animal painting, and considers him at this period to have been unrivalled in his own style in Italy ; he was however surpassed afterwards by Cerquozzi and Borgognone. Horses were his favourite subjects, and he excelled in battles, processions, cavalcades, hunts, and various field-sports. His designs, particularly his etchings, are remarkable for their spirit and boldness of conception, but they are at the same time coarse and heavy, and careless in their execution. He painted generally small figures ; in large ones he was not successful, and he seldom attempted them; he however occasionally prepared large cartoons for tapestries, in the style of his master Strada.
"Battles, hunting-pieces, marches, and cavalry-fights are the subjects which he treats by preference. Although his horses are too fleshy, they have the merit of variety in their attitudes and movements. The heads of these animals are treated nobly.
"All the prints of Antonio Tempesta are deeply bitten in with aquafortis: this gives them an appearance of crudeness little likely to please the eye of the amateur; but the knowledge of drawing and the freedom of hand make up for what they want in delicacy.
"Although the general finish of the prints of Tempesta is little remarkable, engravers may obtain useful lessons in laying the first plans of their works when they have horses to introduce.
"There are besides many engravings of Tempesta which, even disregarding their spirited freedom of touch, deserve to be collected by amateurs in their portfolios.
"Tempesta is indebted chiefly for his wide reputation to his engravings. His work of this kind is very extensive.''
Small gallery of Tempesta work's at wikipedia commons.
This image comes from Tempesta's Horses of Different Lands of 1590