I wanted the plumbing out of sight on the left. At the time, I thought this would work out best, keeping the drain up higher and kind of hiding the return bulkhead. It's too late to make any changes and works just fine.
The wave action does cause a slurp situation, but I don't care. I could fill the trench with some type of foam floss to stop the sound, but it would be critical that I clean it out regularly to prevent stoppages. Since it is in the foyer, there's no reason to bother. You only hear it when you stand in front of the tank.