This i just the levels with the backdrops and props added, there are quite a few things like the rocks, that I ended up not using but I may revisit the look of these levels once I've spoken with the rest of the team. The backgrounds are using a subtle parallax effect that I prototyped earlier in the project.
These are the backdrops as one image each, in Unity each layer is a separate png that I have copied across to fit the level.
Update: 12/04/16
I added some clouds to the second level to make it feel more complete, and I made them parallax as well.