Hmmm, i think something like Futakin or Futaling would fit better as a title. Futa Valley is also good, but too simplistic. Rather, going for something different for the title brings more attention to it which is always a good thing since the title is the first thing someone sees on a game.
It's always good to hear from you Mofu. Your artstyle is one of my favorites and i always love to see news of your dedication to your game, is very refreshing when someone gives so much love to their project.