Hi I am needing help on this Marc Chagall painting. Is it possibly a good piece or not. Has a label on the back.

http://i842.photobucket.com/albums/zz348/bigevil79/KGrHqEOKoYE3FF-b0FdBN3Sng1IDg_3.jpg

http://i842.photobucket.com/albums/zz348/bigevil79/KGrHqQOKiwE3EnvS53BN3SnjmtU_3.jpg

http://i842.photobucket.com/albums/zz348/bigevil79/KGrHqUOKj0E2--9rVYBBN3SngzIc_3.jpg

http://i842.photobucket.com/albums/zz348/bigevil79/KGrHqUOKnIE3bwqqscBN3SnnPgw_3.jpg

http://i842.photobucket.com/albums/zz348/bigevil79/KGrHqQOKiE2mIBhbBN3Snlds2Q_3.jpg

If it's an original, it could be worth $15,000 or more.