Great thread, useful for me too.
Bit of an attempt to add some jump-through platforms in the mid-ground using existing colours.
Don't know if this is visually confusing.
Probably needs some more consideration to make the platforms more readable, probably by better use of moss and vegetation...
Not sure what you could do with the background atm, out of time right now. 
This is wow. I never thought it could look this amazing. I'm taking the whole concept into development. No words to thank you enough.
