I like both 2 and 3. 2 because it's such a lovely, bright and clear thumbnail of you work. #3 for the shop name, but since the only folks to see it will be in etsy/artfire forums your shop name is generally at the top of the posts anyway. Either way the new one are so much more eye catching!
I really like the pop of the colors in #2 and #3. Which way you go will be the right one for you. You have great taste...follow your heart on this one..
I love #2 Megan!
I like the first one! But then again, I love colorful things!!!