about the choppyness, it's best to do a real size quality check with multiple color backgrounds, (same background as here is also a good idea) for example i always put a white and black background behind mine to see white and black outlines, and usually make another background using a random color... or you could check both in mozilla and internet explore how it looks, but usually you end up having to upload that way.
well the first one i rendered myself too !! (personnally i think i did a better job ) and the secound one is elite !!