I showed my kids last years pictures and it really motivated them. First we drew a tree trunk with branches and roots. Then I handed out photos of animals and plants from the rain forest. They all wanted to do a snake and vines. It took us 20 minutes for about 5 days. We do it at the end of the day after recess. I am pretty proud of these budding artists! Every one turned out. I didn't put all 23 because some of the them looked so much alike.