Tips on purchasing beautiful paintings and showing them off is right at your fingertips; of course many decisions and the main question about this is who is the artist; because certain artist paint in totally different styles and many artist use a different state of the art oil painting that adheres specifically to light. A really good example is; have you ever gone into a Thomas Kinkade gallery and if you have you know exactly what the point is, he paints with light; there is a base in his oil paints that reflects light. If you have one of his paintings on a regular wall sized and then view the ones in his gallery with the proper lighting it makes an entirely different picture. It depends on the type and size of picture but choosing a light would be very simple and it could be a battery operated picture light placed either under the picture or above it; battery picture lights can really make a difference on the show case of the full painting.