Hey Rabbitz, usually if a guitar/bass is intonated the saddles will be further back for the thicker wound strings and closer to the nut the thinner the string. Then the G string on a guitar is generally a bit further back than the D string then closer to the nut for B and E strings. See picture this is roughly what a bridge of a G type guitar should look like.
This of course is only a guide as it depends on nut height, string gauges, bridge height and the angle of the bridge relative to the nut.
You should tune the guitar then move the saddles until the open note is exactly the same as the 12th fret harmonic.
In regards to headstock logo thats a personal preference to the builder, totally up to you. The judges feel that if you have built the guitar you should be proud to put your name or a guitar name on the headstock
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