Sheri, thank you for the link on how to download! I loved that one and I already have it pop up in the message after they purchase the item. I haven't had a problem yet! I love how you can sell it to anyone in the world and you don't have to worry about shipping.
As far as the cards, I had the same issue DonnaRose and Sheri. I took them to get printed on cardstock at a local printer---it was not even that nice and it was still costly.
I saw someone get 4x6 prints, chop them, and then mount them to a card. That might be the only way to get them to actually have the right coloring and look nice. It's just a lot of money to pour into making a professional bulk order if you are not even sure about it, so this mounting option is the only one that feels comfortable.
Thank you so much for your replies and input :)