App game 10 level mockups

This is what a business in Australia was looking for in their app design

I am designing a game where players will throw an object from the left side of the screen to the right. I need obstacles in between to make it difficult. These can be made up of glass walls they need to smash through, vines hanging to slow the object, tramolines they can bouce the object off or a basket that needs filling to pull the catcher up so he can catch the object.
Dont really mind what program its done on but .png would be preferred. There will be roughly 20 different levels from easy to hard but I will start with 10 and I can provide some samples if needed
I DONT NEED BACKGROUNDS right now just some ideas for different levels.
I ONLY need basic mockups nothing fancy.
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