My present workflow consists of,
Catch the fish.
Wash, pin, and dry fish.
Cover fish with either sumi e ink or thinned acrylic paint.
Place colored Unryu/Mulbery Paper over and rub as many details of the fish onto the paper as possible.
Then either leave the original impression alone or fill in the colors.
Photographing hasn't been doing the trick in bringing out the detail of the paper so digitizing is going to be scanning.
I scan the images on an Epson PERFECTION V37.
I then run the scan into a stitch software that came with a 20mp Nikon Coolpix called Arcsoft Panorama Maker 6 , which by the way has had me close to throwing my laptop because of its inability to line up scans.
I then bring the Pano Stitch into iPhoto to clean up as best I can.
I usually have to re export to desktop to reduce quality because of Mb size restriction.