Thank You.
Yes, the over flow is slightly off both from the side and the back.
This is to
1. Hide pipes and wavemaker behind the over flow.
2. Allow the water to swirl around the over flow for better circulation?
3. To bond dead rock on the overflow and give a more 3D effect.
4. Overflow will be under the light and I will in-cooperate algae scrubber
Does that make senses?