Clothing is difficult to sell as there are so many listings for buyers to choose from. A suggestion that I would make is that you use all the letters you are allowed in your headings. Make people see your heading and say to themselves "I need that". Use words like 'absolutely gorgeous' or 'stunning'. Use an online thesaurus to make people want to click.

You will also need to tart up your descriptions, and a few more pics won't go astray. If you are going to sell a lot of clothing invest in a dummy to show the clothing on, or maybe a nice looking friend to show second hand clothing off. Selling is all about making people feel better, tweaking their emotions, not just supplying them with a necessity. 

Clothing is difficult as I said, but if you can sell it well you should be able to sell anything.