You're sure you haven't done anything wrong, but you don’t know whose side the law is on. Fret no more. If you are planning having that image put on canvas, check out these ten rules to see whether or not your image is a legal concern.
Flat light is characterized as light that is coming directly from the camera's point of view. On camera flash is a great example of flat light. It is fine to illuminate a photo, but rarely adds visual interest to a photo. Try diffusing or bouncing your flash if you can. It will create a more natural looking light effect.