Actually a compositional counterpart to a pterosaur painting, sometimes you just need to paint some Wellsian tripods terrestrially stalking over Victorian Britain. Inspired by the 1898 novel 'War of the Worlds', obviously.

Lovecraft's Cthulhu, star of 1926 short story 'The Call of Cthulhu', doesn't need any introduction, so I won't worry about writing one.

Blasphemous fish-frogs search Innsmouth in one of my favourite Lovecraft tales, 'The Shadow Over Innsmouth' (1931). The creatures here owe a lot to Carboniferous tetrapods, because three decades of being interested in palaeontology will do that to you.