Hot answers tagged suffixes
It is not that it can't be used with nouns. It cannot be used with anything that is inanimate. Thus, since a picture is inanimate, 絵画たち would be ungrammatical. You should just use 絵画 regardless if it's just one or many. There won't be misunderstandings if the number isn't important, and if it is important, you should specify it, even if the number is general ...
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