I'm gonna be honest, The game wasn't very fun. It's just waiting for the items to drop, then digging. I think you should search on youtube "game design". You'll find a lot of good and helpful videos on the topic. And also if you can't draw you can check out https://itch.io/game-assets. It's a very helpful resource that I use a lot. And also man. I'm currently making a game, and I want you to test it out, and give me feedback on it. The link is https://slug-in-tub.itch.io/the-secret-garden-demo. You can leave your feedback in the comments.