Not sure if you want to take the trouble of doing this but it would be great to be able to have thumbnails on the designer pages. Perhaps even scrolling TN's like you see for example on the Ames Bros webpage.
Currently, if I click on a designer, you have quite large pictures on their page. If that designer has quite a few posters you end up having to click through many pages.
For designers like Kozik and Arminski with their many many posters you end up with too many pages if you have digitized all their posters (your end goal I assume).
First of you could cram a whole bunch more posters on a page by using TN's. Second, if you then also have the scrolling ability it makes it look quite slick.
I am no expert but in case of Kozik you would end up with too many TN's to load in one shot. In that case you can still resort to various 'chapters' of TN's.
Downside is ofcourse that TN's are hard to see and will give you a splitting migraine. Dunno... think about.
Also on the main page you can have the current TN's scroll to have a few more days of history.