Revisiting the beasts of Revelation

I have been exploring Christian art based on the book of Revelation this weekend and, in the process of revisiting the text, I’ve been struck with how the two horned beast, the one that is given the number 666, is distinctly subordinate to both the seven headed dragon and the seven headed beast that comes out of the sea. This contrasts significantly with more modern conceptions that seem to place the two horned beast front and centre. Indeed it seems to me, that in terms of resonance with Greek mythology, we should be looking more to the Hydra myth than the Pan myth when we think of Satan.