but i am looking for a helm/deco of this type.

Hi Netta,
Love the dragon! Nice looking helm there? Looks like a Celtic Design. Is it one of your own design or from a book/film etc? I ask as direct copying may breach copyright. 

I am not sure how to do this stuff, I can have a play around with it if you like, but you may be better to ask in the freebie or modellers forum?
Which dragon do you want it for by the way?