pudding-face vs smiler

pudding-face and smiler both are nouns.

Word	Noun	Adjective	Verb	Adverb
pudding-face	Yes	No	No	No
smiler	Yes	No	No	No

As nouns, smiler is a hypernym of pudding-face; that is, smiler is a word with a broader meaning than pudding-face:

pudding-face: a large fat human face
smiler: the human face (`kisser' and `smiler' and `mug' are informal terms for `face' and `phiz' is British)

Other hypernyms of pudding-face include countenance, kisser, mug, phiz, physiognomy, visage.

pudding-face (noun)	smiler (noun)
a large fat human face	the human face (`kisser' and `smiler' and `mug' are informal terms for `face' and `phiz' is British)
	a person who smiles