Kind of cool, but would have looked much better if you turned the specularity way down and reduce the hardness. And the shadow is somewhat disturbing, you should use soft shadows or remove them altogether. The surroundings are nice!
More or less with the adjustments you suggested. Hope you enjoy and please, more suggestions are wellcome. Adjustments on the background ligths and sky.
I like the improvement. Could still be more saturated though, I cranked up the contrast in gimp, hope you didn’t mind but I think the colors resembled the logo you posted a link to better: