Ok here's some constructive criticism: The elements are too disjointed and the shape of the P does not fit the modern vibe an ECG graph gives off. It looks more like something you see in an ancient inscription, which again, is rather misplaced.
The black background is also very 2000 and makes it very hard to place logos anywhere outside of your avatar. Imagine a black block on the top right of a website or something. The thing crayon streaks tip it off. I'd suggest doing a complete reworking of the entire thing.
Thanks! Yeah, I'm still getting the hang of GIMP, so there will likely be many more attempts after this. BTW this logo is for my electronic music work, the name is "Pulsis Vitae"