Nice! I always wondered if it would be possible to just remove the rats completely from that shot, but the way they overlap with the speeder probably makes it too difficult.
I only kept two womprats in, as in the following sequence (the SE shot of the Speeder in the narrow street before they get stopped) there are womprats and I decided it would be kept for continuity and consistency to still see the Womprats in the first shot, but greatly reduced to only 2 so that there still would be life in that scene but not too many Womprats that it would overload the sequence.