HR Giger: Mordor XII (1976) references Francis Bacon's Study For A Bullfight no.1 (1969)?

leading from

HR Giger's Mordor XII (1976)
and
Francis Bacon's Study For A Bullfight no.1 (1969)

a) HR Giger's Mordor XII (1976)

b) Francis Bacon's Study For A Bullfight no.1 (1969)

c) Relevant part of Francis Bacon's painting next to Giger's painting

d) You can compare the white mass from Bacon's painting and see the fleshy equivalent, and the way that the movement trails have been turned into the looped tentacle

e) Here the bull's hindleg appears to have been transformed into the steam inhaler on a wheel