When writing a review I believe that Fair Use is an acceptable usage. This is the disclaimer I use.

* — Fair Use. The artwork has been reproduced in its entirety to unambiguously identify the artwork being critiqued. The image is of very low resolution (less than 25dpi) and is not suitable for commercial reproduction. The original image remains the property of the copyright holder.

So there are a few points here. It's a review of the work, and the purpose is to unambiguously identify the work being reviewed, ie. the commercial value is in the review, not the artwork. BTW, did you know there were two separate albums called the Dark Side of the Moon released in the early 70s?

Secondly, the image is of such low resolution that it is suitable for identification purposes only, the image itself has no commercial value.

This is it usage case Wikipedia makes for the images it uses.