I like very much your work on the shadows effect over buttons, sliders, etc. This have a interesting 3D visual effect. Nevertheless, I think that a Toolbar (with an image similar to the buttons) is necessary to match best with the rest of the theme, and maybe a gradient pixmaps image on the boxes behind the tabs. My Vote = Good (Excellent for me!)

i voted good cause i think it is an interesting approach, kind of free constructed and different.