Screenshots of what you're doing.

looking good kuniu. Add some support structures to the roof, because now it's looking unrealistically flat.
And i'd like to see how it looks if you add a bright, nearly white glowing stripe into the center of the tubes.
Another idea: get rid of the clang-floor on the pillars. Take the brush, push it down 8 units and use some different metallic material. Fill the gap with a glass-brush and use light-stripes. And add some counter structure above the MH-pillar to give it more focus visually.
Just take the ideas as some inspiration

paint...