I'm just wondering, how did the ExAnimations screw up anyway, I was pretty sure I had them all placed properly when I made the background in the first place.(Should probably put a ? mark here too)
Otherwise, I do like the design over all.
In regards to another factory background being made, there is only so much you can do with a factory setting. If anything, gears, pistons, and other things of said manufacturing nature come to mind. The only real thing could honestly be done to make a new one is to probably go with chains and hooks, or a background of scrap metal. I designed one for my personal use, but I don't know if it'll fit the bill for SMWCP2. Plus it uses layer 3.
I could try my hands at making another factory background, but that'd still take some time. Do we have any other levels in need of a new background anyway??? Without the gears of course, gears are already too heavily in use.