craftsmanship vs skill

craftsmanship and skill both are nouns.

Word	Noun	Adjective	Verb	Adverb
craftsmanship	Yes	No	No	No
skill	Yes	No	No	No

As nouns, skill is a hypernym of craftsmanship; that is, skill is a word with a broader meaning than craftsmanship:

Other hypernyms of craftsmanship include accomplishment, acquirement, acquisition, attainment.

craftsmanship (noun)	skill (noun)
skill in an occupation or trade	ability to produce solutions in some problem domain
	an ability that has been acquired by training