I doubt it. I would have taken a bit more care if I had thought ahead about STS. like maybe added some coordinated back ground papers. maybe the next batch
You get such nice detail with these markers and I love the images you choose to work with. I have a feeling that even if you just offered the colored pages with no crafting additionally attached to them (like don’t even make them into cards just the plain papers once you finish coloring them) they would still sell at the STS. They’re so fun!