In A Sea Full Of Stars | Character Art | Character Expression Sheet

I'm working on my own picture book project and here's my character art and character expression sheet.
My story is named "In A Sea Full Of Stars", and it's a story about my main character, Aster on a journey to find his own star, travelling through different islands on the sea, with his spirit seal friend named Orion who acts as his guide. It's still in early stages but I have recorded my picture book journey (e.g. art processes, where the inspiration come from...) down through reels in my Instagram: https://www.instagram.com/ryouart/