First of all: Great work! It's very nice to have a developer, which is improving his script more and more!
It would be greaet to have a description field for each card. The description could appear below the title below the image. The advantage is, that if you can place some more text on a single ecard page it will be an improvement related to SEO.
And also if you have text on an image, you could enter this text as clear-text on the page for people who cannot read that text well.
But in any case this field should be optional.
