I just did a quick glance around. As I would if I were looking to have photos done for my kids. When looking for people to do photos I always look at the variety of their shots. Is it just me or are your shots mostly of the same kids? For me I would like to see a better sampling. Can you offer to do some free shots for some additional families so you can build your portfolio more? I don't remember where I read the article recently, most likely on here though, but it was about building your portfolio by offering free photos then moving to small charge but letting people know that this is just short term.
Like I said nit-picky I know. I plan on first taking pictures of friends kids to get a good sampling so that someone looking doesn't see that I only have 6 different kids photos knowing full well 4 are my own..