Hi obsessionsbythesea.
It's not an easy question to answer. People are fickle !!!
The best answer is 'Presentation'. Make your adverts presentable!!!!
I've checked out your listings and here are my observations:
Personally I would plump for a simpler format ie.
Description - blah blah (with a lovely enhanced image underneath).
Then............................
Terms and conditions - blah blah.
Shipping instructions - blah blah.
etc.
All using an Auctiva template. This also gives you an identity and professional look (read below).
When I viewed your listings, using 800x600 resolution, I had to scroll (left to right) to read the information. This puts people off and unfortunately makes for an amateurish advert (Most Auctiva templates resize themselves automatically - Try them with the various resolutions).
& finally - on your eBay store page, your image would be better if it was crisper (obsessions by the sea - and what you sell). It's unreadable.
Hope this helps.
Gordon.
ps.
Your items look great and deserve some great presentation.