I made this one as a fun diversion from my usual designs. It was an entry into the National Park Service's Fossil Day art competition. I won an Honorable Mention.
Microraptor was a genus of small, four-winged paravian dinosaurs. Numerous well-preserved fossil specimens have been recovered from Liaoning, China. They date from the early Cretaceous Jiufotang Formation, 120 million years ago.