Émile Jacotey is the fourth album by the French progressive rock band Ange, released in 1975, formed in 1970 by the Décamps brothers, Francis (keyboards) and Christian (vocals). They were initially influenced by Genesis and King Crimson, and their music is quite theatrical and poetic. Their first success was a cover of a Jacques Brel song Ces gens-là, on the album Le Cimetière des Arlequins.
The three other members of the band, in its first years (generally considered its best years), were Jean-Michel Brézovar on guitar, Gérard Jelsch on drums, and Daniel Hass on bass (and acoustic guitar).
Who the artist behind the album cover is, I don't know - but I like it!