here are a handful of the Raven images for you to view. I suspect Philip wanted the individual bird on white? I can easily flip them around so they face in the appropriate direction for your needs and, if I get your confirmation in the next couple of days should be able to get the shots to you by the 11th if I use the express service.
I wouldn't want to go beyond 20" x 16" with these to be honest as they are already quite cropped, and there would be a nice amount of white negative space around the birds.
Regarding cost, I will of course do these for you at cost which will be approximately £15 per print. Let me know which you'd like and I'll run them off right away and get them in a large postal tube and on their way to you.
If you click on the individual images they'll enlarge for you.