Please remove the following auto generated files:
Can you also remove the images that are no longer used? We don't need them anymore.
Can you also change 'KDE JuK - KDE JuK Media Player' to 'Juk - KDE Jukebox'?
Otherwise, the redesign looks good.
Also adding @mpyne as reviewer, maybe he can provide more feedback :-) and maybe for you the cover manager work so we can have a better screenshot of it ;)