"If I was in your shoes I would've just taken the picture down, as you said it was 2 years old so really it's not as if it was garnering tons of attention or views."

Disagreed, there's a few pieces of mine people clearly favor, some are older. I had a piece from 2014 I had to re-upload so I could have it in my gallery and spread awareness that it was mine, because I got tired of people tracing/re-uploading it as their own.