Hi Kayla,
Yes, more items! And ready made items. People want holiday cards, ready to ship. Holiday and seasonal do well with cards and gifts.
I'd be turned off by the 1-2 week processing time for a holiday card. But then, I don't do what you do. Your gold Thanksgiving card is beautiful, but someone would have to order it way ahead of time to enjoy them.
With custom options like a message inside the card, how do people add them? Do they type the message in "notes to seller"? This is for the holiday card. I see you work one on one with wedding sets, which are lovely.
Other than that, tags look good. I'm sure there are people who are better with the seo aspect of listings.
Have you worked with clients already? People unfamiliar with how you work may want to see testimonials or other finished products. I really like what you have already.
Eh, hope this helps. Just keep building it up.
All the best! And stay on top of upcoming holidays. How bout a sampler card pack of obscure holidays? National Coffee Day, Talk Like a Pirate Day......