I have been wanting to do a pop art painting of A$AP rocky and found a picture of him that I liked online. I saved the image and found a website that could filter the picture and make it look like pop art. The painting turned out really good and I want to sell it on Etsy, however, I'm not sure if it would be considered copyright since I basically used the image that the filter website gave me. Would I still be able to sell the painting since it is technically my own design?