I just applied your suggestions, and the scene already feels much more appealing. Thank you so much!

The version I posted was only a first draft. I'll post an updated version of the scene later on.

Thank you very much for your feedback !

I'll definitely keep your suggestions in mind, especially regarding the sea colors and adding a bit more violet to improve the overall atmosphere.

As for the parallax, I had already separated the different elements, but I honestly hadn't thought about using them that way since this is my first project of this kind. I actually enjoy technical challenges, so if you think it would benefit the scene, I'm pretty sure it's something I can implement in Adventure Game Studio.

Thanks again ! Receiving feedback on this kind of project really means a lot and is very motivating.

Really nicely done! It's good that you've started to visually separate the characters and objects from the softer background.

My only complaint is that you went for a dirty greenish dark color on the edge of the horizon and along the edge of the island. I feel like a cleaner blue, even a little towards purple would be a better choice.

Also, maybe a bit more comic book-like white clouds would be a better choice for this scene, with also more bluish transitions rather than dark turquoise. I think they would "lift" the scene a lot.

I hope you'll divide it all up nicely into parallaxes for the game, of course?!

Anyhow, good luck with this project, it looks promising!