You don't seem to realize. The idea IS to have to colors like that. If i left them normal it would be like a fu*king rainbow xD.
I Had to use like 4 color balances and hue+saturation just to achieve that affect so not really simple is it?
The placement. If the render gets placed anywhere else. All you see to the left it a couple c4d renders. a flare and a few smudged layers. Placing it in the middle draws attention to the render which is what was needed. Not people to stare at whats happening behind.
Text placement. I Agree with that.
And the border? It depends what you fall down on.As far as i can tell. You use a very tiny border which nobody sees and it serves no purpose. Some people i have worked with through Graphics Design used the idea on using a slightly thicker border which draw all attention to the image.
Thats what it should do.
Anyway. Your opinion on this is well. Your opinion. I'm just justifying your points.