I like to take a photo of my works on bright sunny days for my prints.  I'm aware most advice will tell you not to do that, but it works for my style.  I try to capture a little bit of the shadows of the paper.  It makes the print look more 3D.  So I set the collage at a slight angle to the sun for my official shot.  The day I shot the lobster, it was cold, 18 degrees!  In Northeast Ohio, we can go for a week or two without a sunny day, so I need to take advantage of the sun despite the snow.  Needless to say, I make it quick.