This post made me think of the question. This particular question is either a learner's question better suited for ELL, or a low-quality question. It made me think of the question of whether irrelevant images should be flagged, in questions or answers that are otherwise acceptable, and if so, what the appropriate flag is. Is it spam? That is, should the posting of an irrelevant work of art be considered promotion of that work of art, or of the user as an artist? I did not see anything in the flagging process that jumped out at me, except the possibility of "in need of moderator intervention."
If I see some blatantly irrelevant picture, text, or link in an otherwise okay post, my first choice would be to edit it out. I'd also maybe kindly let the user know why I did that.
And then if I see a potential for an edit war, I'd definitely flag it for a moderator's attention.
On the other hand, if I see that a post is itself not relevant for ELU's audience, with and without the attached irrelevant picture or spammy link, I'd choose some other flags.