You have lovely items, but you need to use all 5 images. You are marketing it as a card, yet your descriptions sound more like a small picture? So does it open like a card? That is very confusing. If it is an actual card, show a picture propped open and show in the back as well. If it is a card, does it come with an envelope? If people are going to spend $5 on a card and $2 on shipping it better come with an envelope that fits it perfectly.
You really need to change up your titles. Putting the exact same title with a slightly different ending is going to look spammy to Google and you may not show up on searches. Make sure you are using all 13 tags and giving them 2-3 words in each one.
It would also be nice to see dimensions in inches too :)
Your artwork is beautiful!