Firstly the game is so smooth for a 3D game, loads so fast it's so optimized.
Second, i can't imagine this theme being integrated into a Fishing Game but somehow you did it, and the theme integration actually make sense for me. It's a genuinely good game. You paid attention to the details that makes the game immersive; such as the waves, the presentation of the boat being tilted, chef's kiss.
You've built a compact, polished and immersive fishing experience here. Congratulations !