Looks good, well done!

Due to the size limitation of UK antweights having to fit in to a 100mm-ish cube, I could go up to 142mm in any dimension, providing that I don't expand the other 2. Having a preference for wide wheelbase robots, I upped the width to 130mm and tried again.
The official limit is 101.6mm or 4 inches. I tend to aim for 100mm cubed for mine to ensure it fits.