It's not the first one I've done ;) my first one's were very similar to your's. After a bit, I went to the effort to make my own car base. This is about the 4th or 5th base I've made myself, so I could get it to look just how I wanted ;) got something like 100+ layers in photoshop hehe :D
Your's is a nice, clean looking livery Charlie :) though I prefer a bit of colour on the cars as opposed to white (in real life). The white cars tend to look a little bland on tv :P
Just some hoping for an oval version. This is a class B I painted for a friend for iRacing. I have not done any F1's yet. You can see it here: www.ajppaint.com
Funny thing is, I painted that on top of Trulli's Jordan. Later, Spyker actually purchased Midland, which used to be Jordan. Accidently, my image was quite future-telling :P