I wouldn’t mention it for a while and see if she comes back to it on her own. Sometimes making a beloved activity competitive or an “achievement” just kills the joy of it. If she’s talented and she loves making art, she’ll come around. Or, she will find something else she truly enjoys doing.
My kid started to enjoy her “thing” (a sport) less and less when I started pushing, truth be told. Eventually she dropped it and found something else she liked (debate) that had nothing whatsoever to do with me, ha.