Not a bad first build! I'd have liked a bit more consideration into the realism of space travel. I think it would've helped the world building. Since the MC is from Titan, he'd've had some trouble adjusting to a planet's high gravity and would not be used to a natural atmosphere with different gas concentrations. This might've been a bit more realistic than the 'star sickness' approach you took. I'm a massive sucker for hard sci-fi, so I am definitely biased in this opinion though! Otherwise it was a great first build and I am looking forward to seeing how the story progresses!
Super interesting idea! Thanks so much for the feedback <3 the reasoning I took with my approach was the playable character spent the last two months in training to adjust to Zenalyr's planetary conditions, and getting used to space travel! I also (albeit briefly) mentioned the teraforming generators on his home that adjust the planet to be more or less standardized to other habitable planets. I could definitely go back and add in more Sci-Fi to those descriptions!