you mean the "ground"? Yeah, It think both solutions are fine, actually. They are different approaches in a sense however they both keep to the internal consistency, IMO.Inevitably though, it's your game, just go with what feels right to you. If someones suggestion feels right to you that's still your call.The clouds for the background are an interesting addition, however one "issue" with them I notice is that the house that fills the purpose of finish/goal shows through, however that could work the way it is if its intended to be like a imaginary goal or perhaps a multi-dimensional teleporter or something. Should you want to make it an "Easter-egg" you could make it a police booth to reference doctor who, for an example.
