Miniature paintings on gold background

These three framed paintings measure about
4 1/2 inches X 3 1/2 inches. The inset paintings measure about 2 inches X 1 1/2 inches. The paintings are on a gold color material that is stamped with what appears to be " K1 231 TM" although it is difficult to read. The artist's name is impossible to decipher. Just wondering if someone can help me identify and tell me something about these little paintings.