I feel like this needs some more depth. Everything on the right side of the page seems unnecessary/unrelated to the gameplay itself. Or maybe I missed something.
Maybe include currency, energy levels, materials or something that needs to be balanced. Otherwise it's just blackjack with a story attached to it
HOWEVER... if this is meant to be geared towards kids, the gameplay is perfectly fine then. In that case I would spend time on art. Some early kid games are super basic and this would actually work well for that as long as there is something cute, fun, flashy for them to look at