This is the Radiohead's album cover, The King of Limbs. The strong contrast color tone used here can convey the sense of insecurity , because it gives the viewers rather unplasent and incoherent sight, especially the red line that is strongly contrast to the green areas behind it.

The deep black backgroud also raise frightful feeling, because it appears as if the two scary creatures emerges from the darkness. In addition, the theme of this picture is the "tree". As you can see there are elements of the trees all over the picture, for example the drawing of the trees' limbs in the background of the whole picture( it is most apparent among the white letters of the band's album and name as if the tree grows and shattered the unity of the word apart). The tree here, i assumed , can be the tree of philosophy that in the same way break the dark ignorance of humanities , also because this assumption correspond to the lyrics' ideologies in the album. Moreover, the tree can connotes Radiohead's great leap forward in their musical improvent and hybridity. That means, with this new album they break away from their old style and tries to produce new sound or tries to emplot new meaning to their music.