I cannot choose a background that I like in the long run for my android phone with android 2.3.5 and a 320 x 480 pixels screen.
I like it how the background smoothly changes a bit when icons move fast by moving your finger from left to right. But quickly I find the background uninteresting, thinking "not again this one".
I tried the golden ratio when choosing pictures. But the sliding mechanism makes itself an issue when the left side of the picture is connected to the right side rendering an ugly break.
So I tried panoramic images. But they always have a 2:1 ratio, which creates a border for the 640 x 480 ie 4:3 ratio required for backgrounds.
So to conclude: Which characteristics does a background image have to fulfill to be appealing for a longer period of time while working well with the sliding mechanism of android?