That's a Luna Moth! Sounds like you had a very good omen there!!!
And if you want to see some amazing moths, and just about anything else...go to wiki. The collection of pictures in amazing!
This is a shot of a female Atlas Moth. The Atlas moths have the largest wing surface area, sometimes spreading 10-12in. These are so gorgeous, it's hard to believe they're actually real life creatures!
And, btw...I wanna come to your wine tasting party with you and Zoe! Seriously, I would love to come see your art work. I seem to recall that we share an insect interest!!!