Robby,
I see that your aquarium cabinet is matching your chairs...
Your tank one of the corner have a cut out skimmer water to below for filtering ??
Did you purposely ask them to make it in such a way ?
I see that your tank glass is quite thick...
How come cannot see the substrate later in the picture ??
I think you should just try and error first and learn along the way....
Nice center piece of drift wood you got there...
Stan