Thank you so much for making this game! I already played all three routes, and while I agree that the normal ending was a little lacking, I feel like it's sort of understandable - you as the player chose not to learn more about Silas, so it's your own fault that your journey with him is kind of awkward :)
The friendship and especially the romance however were beautifully written and rewarding. I also loved the romance ending, although it was a little strange for me that Silas and the main character had that whole romantic conversation apparently with the other two rescuers still in the room. I think adding just a few more lines where they are left alone would have made the ending feel smoother.
The CGs are also beautiful, and I'd love to tell you my favourite parts but I'd rather not post any spoilers here.