This is free "Dark Blue Parallax Wallpaper".
You will get 8 stock dark blue backgrounds: dew on a leaf, dragon, wolf and the moon, forest, tree and the sky, sunset, nature and wet leaf. But if you want you can load other image from your storage. All images will be automatically adjusted to the size of your screen, thus you do not need to worry about selecting the image with the desired resolution.
So these wallpapers are universal. Downloading them once you no longer need other.
There are some customizable options:
1. Selecting background from stock or your storage.
2. Custom background will automatically resized for your screen resolution.
3. Parallax effect sensitivity.
4. Anti-shock sensitivity (manual calibration of the accelerometer phone).
5. Side appearing effect (background will smoothly comes up from behind the screen)