I'll give it a second shot later but this is what I was able to do with the image for now, upped to 1920x1080, tried to fix the background for missing areas:
That was fun. The last couple of fights were quite pleasant. The siege itself, not so much. Right clicking for for better than 24 hours is not good. From what I think I heard, the bases weren't even regening right. If this is the way sieges are going to be, count me out.
Ok, spent a little more time on it, this version is much better. Rebuilt most of the backdrop and tried to remove as much weird glitchy effects and stretching as possible, almost perfect =P