a) 'The Baker listening to his Uncle' for Lewis Carroll's The Hunting of The Snark
b) References the early 'Alice meets the Caterpillar' drawing for Alice In Wonderland (between (1862-1864) by Charles Dodgson (AKA Lewis Carroll) (which I think is referenced in Executioner argues with the King about cutting off the Cheshire Cat’s head' ?
d) The head becomes the head, but pipe becomes the centre of the buttoned up part of the front of the nightgown and a crease running from the knee to the seat of the stool
e) Detail showing the pipe stem and the equivalent on the night shirt
f) Caterpillar and the Uncle. I suppose that one couldn't point out much that correlates with the idea of two seated figures alone but the other details are interesting