I have 2 species. They sure look like dead leaves
First up, D. lobata
And now D. dessicata
Fantastic! I'll bet D. lobata would look awesome against some white lichen on a piece of cork. Did you ever get more than one of these IIRC you only got one.
These were my very first mantis when I didn't have any experience with mantids, so I only have one of each. The D. lobata molted into an adult male this morning. There are a few local people than also have this species, I'll have to see if I can find him a mate.
I really had no idea the lobata was so pretty, please post a pic of his adult form when you get a chance!