Don't worry about the non-constructive criticism... those guys are probably running an aero or aqua clone

Like:
Title bar buttons - very fresh!
Start menu and it's button - although remove the S and replace it with a little logo or simple shape.
Colours are fine - I don't know why everyone always forgets WB allows you to recolour you skins.
Dont like:
The title bar's caption - I get the feeling you might be trying something different, just for the sake of being different. If you've got your heart set on that scheme, why dont you try make the upper flares have the same curve as the window corners - they'd look a lot better - guaranteed!
The taskbar gradient might need to be toned to down a bit.
Other than that, not bad at all! I hope you continue development, I'd love to see more of the skin - like all the widgets and stuff.