paint a picture vs reek

paint a picture is not a noun while reek is a noun.

Word	Noun	Adjective	Verb	Adverb
paint a picture	No	No	Yes	No
reek	Yes	No	Yes	No

As verbs, reek is a hyponym of paint a picture; that is, reek is a word with a more specific, narrower meaning than paint a picture:

Other hyponyms of paint a picture include smack, smell, imply, incriminate, inculpate.

paint a picture (noun)	reek (noun)
	a distinctive odor that is offensively unpleasant

paint a picture (verb)	reek (verb)
call to mind	be wet with sweat or blood, as of one's face
	smell badly and offensively
	have an element suggestive (of something)
	give off smoke, fumes, warm vapour, steam, etc.