Is there a gallery yet, or is that a long ways off?
There is a full gallery for 1st stage. I think its only missing newest content with Smith?
You just need to farm a bit of stuff dropped from bosses (or just cheat it into save file, it can be edited with any text editor)
I will prepare 2nd stage content gallery as soon as we finish Dullahan extra scenes (she needs some stuff for her quest, and for extra minibosses). Same for other stages, as soon as they're done completely, i will put a gallery ingame.