Very nice, but I will give you some suggestions if you would like.
First make the "H" symbol white and larger. Then, download a font called "LOKI"
http://www.urbanfonts.com/fonts/Loki_Cola.htmwhich is the letter font used by Coca cola and write HEINKEL with it. I think it would
look much like the coca-cola style that you are trying to recreate.
Nice idea you did, keep up the good fun!
Cheers
MAX