Love your Avatar. ha ha I saw that movie when I was a little kid and it took me some time to get back into the water after that movie and that scene in particular was etched into my memory forever. lol
Good Luck with having a couple of Gourami. In my tank, I started with 4 and ended up with one. One of my Gourami murdered 2 of the others then went after other fish in the tank. She was then evicted from her home and it has been peaceful since with only 1 Blue Gourami and the other fish. If you should have a mated pair, I don't think you will have those issues, but they might try to run off the other fish.
Your tank looks GREAT! Aren't the real plants wonderful? I was a chicken to plant real plants at first but now, I will never be without them in a tank. I can't wait to see the 55 gallon. (hint hint)