Owl mail art

I've been drawing birds alot lately, but would like to paint them. I really like Matt Sewwell's style of painting birds in his books. Its all a bit daunting, so I thought to start out I'd practice some owls from his owl book on some handmade envelopes to send to friends. He is so talented. Next step is to do my own birds from my own designs with New Zealand birds. Some of the envelopes hadn't been fully glued together when I took these photos.