With a photo habit you can visually keep track of work over time, and collecting your own images allows you to offer accurate, quality controlled snaps of anyone who asks.
It is not necessary to use reflectors or professional lighting aids. You can get natural images by taking advantage of even ambient daylight. Put the painting on an easel or wall perpendicular to a large window or outdoors in medium shade or cloud cover. Avoid facing the paintings directly into the sun. Avoid flash or light.
Shoot when paintings are finished and signed but before varnishing or putting under glass. This will keep the art pure and timeless. Title your paintings on the back and shoot the back also. Use a tripod or set the camera on a table for steadiness. Use HDR settings.
R. Genn with permission.