Procedural Generation Crossy Road?

[charred pulsar]

Hi I'm trying to make a not so subtle rip-off of Crossy Road to develop my skills

I managed to make a basic grid structure and generate some blocks as ground,water & roads, and managed to make the player move and camera follow nicely

now I'm a bit lost with the design aspect of how the game should be generated

Currently My Idea is to have some pre-set "scenes" that exist only in code,

like a ground scene, which would have trees and coins