This is a surprisingly good demo, really well done and fun, considering you mention is your first game; It starts a little rushed but the story quickly picks up a nice pace as you go, the cast is really cute and interesting (My favorites are Myra, Riley, Scarlett and Ari).
The battle was actually fun, I loved the variety of skills the characters have and how that reflects their personality and world, and the casino minigame was interesting (It was rigged right? or am I just unlucky) is always good to see extra content in mostly Visual Novel games, it heightens the experience.
I for one hope you continue with this game, it would be nice to see the rest of the story and the other dream worlds.
Keep the good work!