How did I miss this thread for this long?
I have a floating canopy over my 120gal. (Photo after initial set up in 2012.)
I'm a big fan of the Arts & Crafts design in architecture, furniture and artwork, so I designed my canopy to model a A&C hanging light fixture.
One of the better features of this canopy is that it's attached to the mounting plate with sliding rails. This allows me to push the canopy back about seven inches to gain better access inside the tank.
This is well thought out and attractive! Kudos!
I hate it when one can see wires. I don't care if it's a rats nest behind the scenes but all wires (including mounting) should be out of sight. That in my opinion separates an ok design from truly spectatular. This extends to wall mounted televisions. I mean if you're going to spend the time and money to wall mount it will cost about 30 more dollars to move the recepticle and coaxial.