Hi Emily,
Firstly, congratulations on your sales to date, I'm a slightly jealous newbie.
One thing I did notice in your shop are your photo's. Your bows and garters are incredibly cute and unique, and your photo's are lit well and clear but they're mostly from the same angle (details included). I would definitely suggest you include at least one photo of each being modeled. I realize that with a garter that's potentially a little more difficult, but shoppers like to see what they're buying and how it looks. And then perhaps shooting them at from different sides or angles, or resting on a simple prop that will highlight each.
I hope this helps, and good luck!!!!
Ian