Really loving what you made so far. Do you maybe have Patreon? You should open an account so people can support you, like most other visual novel creators.
The character interactions feel natural. Obviously we don't know much about the story, like at all for now, but I have some ideas for what is going on. I wouldn't call it equal to Pacific Rim, though it's where you got the concept from, propably.
How the furs are connected to the “big robotic creature-like machines" (have they got a name yet?) is intuitive/futuristic. I like it. The music seems nice too, but I was not fixated on it, so... The character art stands out from the backgrounds, which is another positive thing. These backgrounds however are rather simple. To me personally it's no big deal. Most important, in my eyes, are the characters, the plot and the story. Music is a welcoming addition.
Good luck! I hope your project is a success!