Just looked through your entire thread here and noticed the progress. The tank is looking great and it has come a long way.
I really love what you did with the door and the framing around the tank. That roping around the glass finished it off!
I have some things I think could really make the tank come together. Have you thought about getting stones and longer pieces of driftwood for the tank? If you get some good sized stones and driftwood it will fill the tank in more giving you more dept and just spacial breakers. I like that whole natural feel you know.
Is there any reason why you chose Blue for the backdrop of the tank? Personally I like black. Just wondering.
I know you can't have plants with the oscars but have you ever thought about maybe Java Ferns on Driftwood or Anubias on Driftwood. That way the roots wouldn't be buried. I love the look of the natural plants. Would the oscars do well with floating plants?
I found this while researching the Lake Tanganyika Aquascape:
Vallisneria is the only commercially available species, but Anubias and Java Fern are also suitable if the aquariast is willing to bend the biotope rules
For the fake plants, have you thought about getting a bunch of the same kind and bundling them together in a corner to create a bush kind of deal. Just small ideas to make things come together and not feel too open.
On your videos I like the new intro and the professional closing, if you could use steady camera shots with more than one angle it would bring things together. Maybe get a different camera so you can cut between them two or something. Good work though. Did you make that intro yourself? Looks good and professional.
If you have seen those Japanese professional aquarium competition videos, those are like what I am talking about. They have cool transitions and keep a steady shot of the tank so you can see the life in it. There are sometimes good zoom ins where they follow a specific fish and stuff.