Link: Redefine Mag
Link: Planet Mu
Link: Sam Chirnside
With the likes of D&AD joining Creative Review in the discussion of music artwork, there's been a real recent focus on what's happened ever since Alex Steinweiss first invented the album cover. Plus there are also the end-of-year lists in circulation that provide a review of what graced 2011's releases.
An extensive version of the latter - complete with credits, music samples and interviews - has been put together by Redefine Mag [link above] and features, amongst others, this psychedelic solution by Sam Chirnside for the Tropics album on Planet Mu.