The American painter, Lawrence Vincent Garrison, who also went by the painter 'Vincent', lived from 1923 - 2007 and was active in Michigan and California. He is best known for mid-century paintings of pin-up nudes. These were printed and reproduced on texturized grounds to look like original paintings. Those framed decorative wall art prints sell for $30 - $40. The estimate is based on your statement that this is an original oil painting and it concurs with his public auction records of actual past sales.