Hello Daniel,
The TreeView and Window skins look great. I must say, though, that the combo drop-down is rather strange (it's blue?) and the PanelBar styles for the root items are rather strange. I've attached screenshots of both issues - am I missing something?
I've updated your points for the first two controls' skins; let me know what you think about the other two.
Best wishes,
Alex
the Telerik team
Check out
Telerik Trainer
, the state of the art learning tool for Telerik products.