Glad to make it available.
The file currently has the the circle at 8.25" diameter. The V tool path generated is 30 degrees but I actually installed a 22.5 degree bit so I got less tear-out for that toolpath. A larger circle could use the 30 degree bit since the individual tiles would be larger. An inlay of walnut in a cherry circle for the text and fish before carving would look nice. I might try that next.
Please post a picture of any carving you do.