Curves--

[SommarShade]

 

[newrmdmike]

wwoo, very cool, i'm a fan of this one. but on my monitor it looks like the lights or highlights could be brought up a bit.

 

[LaFoto]

Lovely play with straight lines (bottom) and the curved ones (top), I like this one, too, but I am with Mike: it is a bit on the dark side (not "darkside"! ) and looks like it could do with a bit of a boost of highlights.
But I am sure you have tried this and started to lose the sky colours in the bottom part?

 

[Sw1tchFX]

Like what mike said, brighten it up a bit, and you've got a great abstract.

 

[SommarShade]

I did some adjustments, I am striving to keep it subtle ...

 

[newrmdmike]

me likes!