I found this leaf a couple of days ago in the local park. It's some type of Mahonia and was still on the plant, which had just starting to change colour on odd leaves, this was the most advanced with just a small amount of green remaining at the base and leaf margin. It belongs to the same plant family as the two leaves I painted earlier in the challenge, they were old leaves, found in the leaf litter, so probably from last year. This one is much brighter. Doesn't seem possible that a plant can change from a dark green to such an intense red!