It looks great. How does it play?

There isn't really a 'right' way to install humbucking pickups, but where you have screws and slugs, the screws are normally aligned to face away from the middle of the body, so the way the bridge pickup is installed is 'correct'. However that's cosmetic only (and started by Gibson just because they thought it looked best). Rotating the pickup 180° doesn't change the sound or the output polarity, though if you are coil splitting, then it will affect whether the selected single coil is nearest to the bridge or not.