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if these are not safe for work maybe its time to change job:p

I work at home, so I even can watch pics of gay lions freely:) But I'm asking becouse it's nudity anyway, and I thought it needs the tag. Just asking:)

I'd say no, since art never is NSFW. but everyone will act as he prefers :)

Oh, I see. Then I will not use it:) Thanks:)

I would say the NSFW is probably advisable, not everyone's attitude to nudity is the same. Simply calling it Art is not a good enough excuse in my opinion especially when a lot of people view their accounts in work time. As an example Deborah De Robertis is a very thought provoking artist but her work is most definitely NSFW and yet it is classed as Art by a lot of people.