Painting "Horses"

I bought the painting about 15 years ago in Līvu Square, Riga. I had it framed at the Agenskalns Gallery, ordering a wooden frame. I cannot say for sure whether it is an original or a copy, but I was told that the painter was Igors Klevers.
The inner dimensions are 23 x 57.5 cm. There is one scratch (~1 cm) on the frame, see the last picture.