I never heard of shipbucket rules beforehand (only seen some pictures over the web), so I'm not sure if this drawing correspond to this rules.
They don't. You'll probably need to redraw them completely from scratch in order to get rid of the anti aliasing.
“Close” only counts with horseshoes, hand grenades, and tactical nuclear weapons.
That which does not kill me has made a grave tactical error
Source Materiel is always welcome.