What would look better on a video website: >dark grey navbar,

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225KB, 481x680px

What would look better on a video website:
>dark grey navbar, light-grey header, yellowish green background, dark grey buttons
>red navbar, light-grey header, very pale grey background, red buttons

My mom (she's an artist) says that the first one would look much better, while I (a webdev) believe that the second one is far, far better. Who's right? Not linking to the website because of privacy reasons.
I'm using the bootstrap framework by the way, so I think you get the idea what the layout looks like (just like every modern site nowadays).

Also, what do you think of changing from red to blue-ish layout (like the Twitter one)?