Bonjour, monsieur(?), and welcome to CYS. You're welcome to share some of your writing on the Writing Workshop forum if you're looking for feedback on anything specific. You can also participate in various prompts and competitions in the Creative Corner and News & Updates if you want a chance to hone your writing craft (There's a Chaos Contest running right now).
All the best for your Unity game, however judging by the format you're working in (I haven't seen CYoA level branching in most point-and-clicks), I'm not sure this is the right website for the feedback you're looking for.
May you create stories worth remembering,
StrykerL