After using this skin for a while I must admit that it looks quite good despite being unfinished.
I like the YouTube like design but there are a few elements that doesn't fit the rest of the skin. This are:
1. Pink Library Explorer bar;
2. Pink and blue buttons in the address bar (New tab, Browse Back, Browse Forward, Refresh, Panel Layout...);
3. Blueish Radio Station Directories bar as it doesn't fit the rest of the skin.
I'd change these elements to one of the colours already used with the skin.
IMHO, the less (reasonable amount of) colours used, the more professional effect. But it really depends on what you'd like to achieve.
Anyway, thank you very much for creating and sharing the skin.
BTW, changing the 'no album artwork' image was a very good step forward!
I wish it could be changed for every single skin form the MB Preferences menu (just like it's possible for icons).