Hey, thank you!
And actually I've never heard of that movie at all. The choice to make it with penguins kinda just naturally evolved from the "chill" theme, and the story content itself (or at least the overall context and message) was inspired by some personal experiences.
I'm not even sure why I decided to go with a train initially? Like I've never been very into them but for whatever reason they keep cropping up in my games (ex. NULL).