Conversation so far:
What did the artwork for At Fillmore East consist of?
The cover of At Fillmore East is a photograph of the band in an alley waiting with their gear to go onstage.
Was there anyone in particular that played a bigger part in the artwork idea of the At Fillmore East album art?
Who was the photographer of the At Fillmore East cover art image?
The At Fillmore East cover art image was shot by photographer Jim Marshall.

Question: What did the artwork on the front cover consist of?
Self-contained rewrite: What did the artwork for At Fillmore East consist of?