There are no images showing, however based on the information given, you have a 20th century reproduction of the famous 1767 Rococo era painting entitled The Swing by French artist Jean-Honore Fragonard (1732-1806). The one and only original is the in Wallace Collection in London. Yours is decorative wall art and not fine art for investment purposes. The estimate is based on actual recent past recorded auction sales of comparables. Retail 'asking prices' can be higher and vary.