Love this game but... – Diamond Art – Colors by Number Review

I absolutely love this game and have finished all the free options for art. I wish there was a way to earn more free art piece without having to subscribe. Would it be possible to put more free art pieces up or an option to sell finished artwork for coins that could be used to “buy” new artwork?? I LOVE the game but want more art to do since I will easily play this game for hours.
Review by 27476383828 on Diamond Art – Colors by Number.