[Renegade334]

The waterfall brush comes from DeviantArt - I simply applied variants of green, brown and light orange to simulate moss and eroded stone. I forgot to color one of the rocks on the lower left corner, though, but since it's masked by the render and the foliage, I didn't bother fixing it. The trickiest was to find the correct shade of blue for the water, as I wasn't sure how bright it had to be but in the end I think it turned out realistic (yeah, I'm completely obsessed with that) enough.

Thanks for the advice, though - my earliest impression was that the 'wide' version had the render a little more in the middle but maybe narrowing it will indeed take the viewer's attention off the bg. I'll have to keep that in mind, although I keep getting the feeling that narrowing the whole thing made it feel a little...cramped in comparison. Oh, well, too bad.