Friday night I took the picture below for a recent post on the Green Mountain Boys. I found it especially bad, and as the weather was pleasant here on Saturday, I brought the same group of miniatures outside to see what difference natural light would make.
I much prefer the outdoors image. I was frankly surprised at how much better the colors appear under natural light. To prevent glare, I placed a paper shield above the miniatures. (Unrelated to where the picture was taken: I also used for the second picture a grass mat that better complemented the minis).