Plants were in amazing form. Just like the rockwork, it's better to stick with a single sort of plant. Ten good high quality plastic plants of the exact same type may look very good, but ten distinct species just resembles a jumble.
I would luv to do something like this with a sink - including see through piping for grey water going "through" the tank. it would actually be a "U-Shaped" aquarium for the top 10 inches, and a complete box for the base.