[varkson]

I find that image specifically to be a bit uninspired, but the other, more complete designs are actually pretty good IMO.

That said, I still like Oxygen, just not the taskbar design. I think they could have iterated on it and got a really really awesome and unique design. In there situation, I'd make the gradients a lot more subtle and smooth then work in more of the idea of lighting into the design. The icons could be abstracted a little more too.