Hello Emelisa,
Your cards are so bright and cheerful!
There has been much discussion on the forum off and on as to whether it's better to have verse or blank cards and it seems that in the U.K. blank cards are very popular, but here in the U.S. I would have to say that my experience has been cards with verses are 90% of my sales. Occasionally I sell a few blank cards, but only a handful here and there.
What I do is create a blank card for the Collection it fits best and then work with the image to create a versed version to suit the category I created it for and this serves me well.
My recommendation is that you choose a main category, then browse deep into the sub-categories and look for those which might inspire you to create a card to suit it. Your style is very colorful and makes you smile, so either choose categories which suit your style, OR challenge yourself to do something outside of your comfort zone.
One other comment which I hope helps you, at GCU the card title helps the search parameters and I noticed that with many of yours, you don't have the 'recipient' or the 'occasion' as part of your title and you would have better luck coming up in searches if they did . . . for example on your card below:
You have title: Going to be ok - Painting - Night sky,one bird looking at moon Greeting Card
Try: Sympathy Night Sky with Moon and Bird
You don't need Greeting Card and remember your titles are truncated in thumbnail view, so you want the title to read like a title, but the recipient (when applicable) and occasion should be first.
http://www.greetingcarduniverse.com/shopping/viewdetails.asp?pid=872739&gcu=
43045123714 Also remember to work at least 3-months ahead of upcoming holidays in order to have a chance that your cards will be found by search engines in time to the shoppers