Okay, not bad responses. At least you're thinking.
Try to think about how she is perceiving the messages you are sending though. Your first one goes for the close waaaay too quickly. Where is the conversation going to go from there?? Your second response is just confusing. How is she living the blonde stereotype? You basically know nothing about her! Haha.
The goal should be to get a conversation going so you can establish a little bit of attraction past just what you have on your profile.
Maybe something like: "Ya know, when I sent that I was wondering why you would have someone else's picture on your profile, but based on (insert something interesting from her profile) I thought there was no way that could be you. Beauty and brains - you are trouble. I don't even know if I can talk to you now.

Tell me, would you ever date a guy in a wheelchair?"
That's just an example off the top of my head, but it does a few key things.
1. Establishes that you noticed something interesting about her OTHER than her looks.
2. Tells her that you aren't hitting on her with the "You are trouble. I don't even know if I can talk to you now."
3. Gets off the subject of her profile by asking a random, interesting, open-ended question. There is almost no way she could answer "would you ever date a guy in a wheel chair" with a simple yes or no.
Bonus: A good follow up to her response about the wheel chair is to ask her if it would make a difference if the wheel chair was all pimped out with spinners and cruise control. Then move to get her instant messenger sn or a phone number.