Usually I would say that .biz is fairly useless, but for this domain it actually works for some unfathomable reason...strange as that may sound. It has that sort of ironic high-brow partnered kicking and screaming with the Alex Foley wise-ass (brashness?) property that appeals to me.
I just do not know what the going rate could be.
I would just contact many different end users as you can and see if you can get a sale around the $100 mark or more if I had to put a number on it.
I like the domain. I was able to sell some .biz for around high $xx on reseller platform. .biz is becoming unpredictable! I did notice some sales lately around low $xxxx. The best part about "nudeart" is that it's not just about paintings but a variety of decorative objects that it can represent. High $xx to mid $xxx if you wait and look around a while