We need more content with Lena. She is probably the second most important character after the MC. She is the leader of the compound and the girl we interact with the most. Lena probably also has the most developed and interesting relationship among all the harem girls with the MC. Yet she really doesn't have that many scenes. The harem scenes only have three moves each and half of them have the ugly jake hiding Lena.
I don't like complaining like that your game is still awesome and my favourite, I just feel as we are approaching the final that something is missing and that it would be nice to have one last major scene with Lena. Either like a marriage, an impregnation, a mission wher we have to rescue her (and then give her the D) or a real threesome with another girl like Debra or Michiko who are supposed to be her friends. I think people would love to have a final lke that, would finish the game with a bang like battle of the bulge did.
Love your work