There is nothing wrong with appreciating art but what you are doing doesn't contribute novel value to the blockchain.

You have been advised to decline rewards if the work is not your own. That's reasonable if you insist on not adding anything additional. You could always write something about the history or style of art.

Once upon a time, I participated in the University Interscholastic League for art recognition in grade school. I remember it being very interesting. A few names that I recall were Kandinsky, Rembrandt, Vermeer and Van Gogh.

It's been many years but I did appreciate that experience. Think you could find a niche in art history on this platform but you need to first reconsider your current approach.

Another suggestion: You can submit posts for the art with rewards declined but then post a weekly curation thread where you talk about your selections and people can reward you on that and the process.