I have searched and searched the web for a site that shows all of Studio27's decals and am not convinced that one exists. This site is the most comprehensive I have found as far as photos of their sheets go.
http://www.club-barchetta.com/SHOP/5...0481/list.html Scroll about halfway down and there are links on the left for different Studio27 categories.
It is also hard to find a comprehensive list of Shunko decals. Their site has a lot of stuff but it's current. Some of their older stuff is not on there and can be quite hard to locate photos of based on my searches.
Rob