It's been a while and I understand that the creator was on a hiatus for a while to take a breather, but I am wondering when the gallery update will be added. Or has it just been canned? Figured I'd ask out of curiosity.

I have to agree here, I'm curious as well. 

Update: Unfortunately, the gallery has been facing many issues and the devs couldn't figure out what was causing the gallery not to be implemented despite their best efforts, so there will be no art gallery update  in the game.

Apologies for the long wait and disappointing news.