I took a look and I think you're store is cute. However, I think your shipping is going to scare a lot of people away!! There is no way most people are going to pay $8.95 to ship an infant/toddler dress that costs you less than $2 to ship.
I think this charge will drastically affect your sales!!
you might want to go to Ebay's Community boards and go to the children's clothing board. They have a TON of helpful info and you can have them look at your store and help you out!!