This was for the colour lesson in ArtSpread - I used a different colour family for each side of the spread. The left was greens and the right was pinks and reds. I think I even managed it without making it look Christmassy! The pictures all had reds and other warm tones so I picked green for the left side to really contrast those. I tend to shy away from red/green in favour of a blue/orange or gold/violet contrast because it can look too Christmassy but had fun with this!