Illustrated Album Covers

So I went looking for some album covers that were illustrated as opposed to using photography. This is what I found:

This one has a very unique style, kinda neat actually. 

This one has a very geometric style. Different from a hand-illustrated piece of artwork, however portrays a different image for the band.

This one here is very simple, but works really well as an album cover. I almost like this better than had they used a photo of the artist. It's a very clean look. Out of all of these, this one is my favourite.

This one is yet again a different style. Simple, yet catches your eye because of the contrast against the white background. Pretty neat rendering.