More Logos

So from the Travel Agency ones I got the message to participate in another buyers logo contest. So I submitted a few. Luckily they are very responsive and tell you what they like and would like improved. So here are a few I've done so far tweaking as I go.

They didn't really understand the Blue Square representing the defibrillator pad so I just scrapped that idea. The idea of it worked better in previous sketches where the white "painted" line was actually a lightning bolt going from the pad to the heart. They said they wanted an "artistic" feel to it so that is what I changed and what it became. This one got a 3 out of 5.

From here they want it more "professional-looking" so I am still trying to figure out what that means to me and how to go about that. This one got a 4 out of 5.