I tried to get the kids to pick a symmetrical picture for this, so they could finish the other side the same. However, the kids just sort of found images that they liked and I figured it would make more sense just to let them pick an image that inspired them, finish it, and add an interesting background. We talked about trying to match the colors the best they could even if it meant mixing a few colors until they got the correct tone! The results were fantastic! I did this with 3rd, 4th, and 5th I reminded them that the distance between two eyes is the same as the length of your eye.