First of all, let me chime in with another "new pics look great, babe!"
I know your query is directed at the ladies, but I'd just like to add that, as a man who has been with women who have worn extensions, they ain't necessarily all that great. Sure, they can make your hair look fuller, but drawbacks can also include:
- a weird sensation when someone runs their hand through your hair
- discomfort sleeping on them
- damage/breakage to your existing hair
All I'm saying is: You look terrific as is, so you should really assess both sides before deciding.