Dominique BOILE points out that the cover of The Flame, the final book written by Leonard Cohen, appeared earlier in the booklet of the double CD compilation, The Essential Leonard Cohen (2002).
Update: Klaus Offermann notes that the same illustration can be found at No Middleman, a poem by Leonard Cohen. It also appears with Not A Jew.
And, Dominique BOILE also spotted it in this Leonard Cohen drawing, Dream Of The Fallen Shechina
and in the Dear Heather booklet.