The failure rate of eCommerce site is rather high, you may well find that getting prospects to the site to be the biggest and most expensive challenge. Testing the waters with some online marketplace like Ebay or Amazon might be simpler, many sellers there have their own sites as well.
Search engines tend to be text driven, adding lots of original fashion articles might help the site get more free traffic, and may help your credibility with prospects.
One competitive reseach tool, Google image search by example (the little camera icon int he image search tab) allows you to identify sites using the same catalog images, which is a quick way to find the selling price range, keep in mind Chinese counterfeit sites routinely steal designer site images for their sites.
I'm starting an online boutique and was wondering anything I need legal wise? I'm from Texas and I'm not familiar with any legal matters I have to do to start an Online Business. Also, any tips would be great (: thank you!
