picking out colors

So I've placed all my heathered 2-ply out on the bed to try and figure out how to place the colors. Generally I'd go for light, medium and dark colors, but sometimes it's hard to figure out which category a color falls into. I'd heard you can use a black and white photo to take the emotion out of the decision, to base it on the shade of the color instead of the value. My first try was pretty close: After that, I rearranged again and came up with this: It's a litle disappointing that the KnitPicks yarn has only two light shades. Al the rest are more medium shades. It will be harder to make obvious fore/background combinations, but with the solids and the other colors I can fill in the blanks. Now I can get started on a swatch, or maybe a swatch of the pattern. Meanwhile, I soaked and dried my shawl, but now I need to pin out the points and steam it to be all lovely. I'll try and do that this week and post a photo, but it may not happen til Friday, since I have that day off from work.