Haha, it was indeed hard to balance a game where the play has to balance it :'D
About graphics: I only use AI to generate backgrounds, and I made all sprites by myself. Maybe you speak about consistency for the UI elements (dialogs, menu, etc)? If so, I must say they're basic Phaser shapes, I didn't take time to improve them ^^'
About the second platform game, the trick is to have enough water tiles to make it difficult enough, and increase Lilmonster's speed.
Thank for you nice feedback, I really appreciate it!