If you look at your listings you will see you have 16 of your cards listed under jewellery making.
http://uk.ebid.net/perl/main.cgi?words=111365&mo=search&type=user
which is a shame because they are very pretty & don't need to be hidden away.
It might be well worth you upgrading your membership to Seller +,
as you are still on Gold Level, it may well be free as you've been a member so long, the most it should cost is £5.00
That will give you 5 free shops not just the one, so you can seperate out your different types of items into different stores.
That will increase your visibility (times the number of new stores you open) because they will all be randomly featured on the main pages.
You can also put each store into a more relevant category, for those who like to browse stores (I do)
Have a look at those competitors whose items are selling when yours aren't. What do they do that's different to you?
Are theit titles more relevant than yours? Do their listings contain more information?
You don't need to copy them, just get some ideas.
As an experiment pretend to are looking to buy some of the items you're selling, what words do you use to search?
Then ask your friends/family to do the same.
Do those words bring up your items?
Those are the words you need to be using in the title, other information you only add if there is room, or put it in the description, it will still be picked up by google shopping, but your titles need to contain what the buyer is looking for.