I think that sounds fine, personally. To be completely honest, I didn’t think you could put explicit photos on social websites like Twitter, Facebook, or MySpace. Have they relaxed their policies a bit?
DressUpDoll – Did you create the Twitter account as a means of marketing yourself, or did you simply create the account for personal reasons? I think that if you created it as a means of marketing, you could go with the more scantily clad photo, but if it’s a personal account, people might misunderstand if you use a picture that’s too risque.
Personally, I am too private in my personal life to use a face picture on a social media site like Twitter or Facebook to promote my business life. When you choose your picture you should think about what it is you are trying to accomplish with the account.