More of the gorgeous syntheticdaisy from Saturday:
(I do love this one, but try not to think of it being some reverse-angle goatse.cx thing. Or if I mention it, is it too late?)
I did delve into the web gallery thing a bit. I still haven't found anything that does what I want, but I found a couple options that are a bit lighter-weight than Gallery or Coppermine (both of which seem like massive overkill) that I may be able to customise. Gonna start with zenphoto and see if it goes anywhere.