The background fabrics are for the sunset sky, grasses surrounding the pond, sand/dirt at the edge of the pond...and the pond itself.
I started with the sky fabric. It is already pretty busy so I just stitched around the random patterns made on the fabric. Would love to tell you how I got this pattern but this fabric has been around a while and I have no idea how I did it. It is dyed is about all I can tell you.