Yuri My Beloved's done, there may be a bugfix update in the future but I'm happy with where it is and don't think I can take it further. I'm on hiatus for this game, and college is kicking back up so I likely won't have time at all to do any of this in the near future.
I'm not done making big titty content by a long shot, but it may be a while before you see anything new.